CN1984171B - System and method for realizing speech apparatus function test - Google Patents

Abstract

This invention discloses the system and method of realizing voice equipment test function. The system of realizing voice equipment test function includes: the tested voice equipment, TTCN2 module and tested voice simulation module. TTCN2 module connects with tested voice equipment and tested voice simulation module, it is used to test the tested voice equipment; the tested voice simulation module is used to send test voice to tested voice equipment. The method includes: send the control information written in accordance with TTCN2 which tested voice equipment requires; send test voice to tested voice equipment, it has a response to test voice; compare the tested voice equipment's response and the predetermined outcome of test, determine whether the test is correct. The system and the method of this invention introduce protocol testing tools TTCN2 at the stage of voice equipment test, it realizes voice equipment functional test's automation, and it simplifies the testing environment and saves the equipment investment.

Description

System and method for implementing functional testing of voice equipment

technical field

The invention relates to a testing technology for equipment functions, in particular to a system and a method for realizing voice equipment function testing. the

Background technique

At present, test automation has become the consensus of many companies in the industry, especially in industries such as telecommunications that require extremely high reliability. Strict testing and coverage testing of telecommunication equipment requires an increase in the degree of test automation. In the telecommunication network and intelligent network, there are many voice devices, such as call center, intelligent peripheral (IP, Intelligent Peripheral) and so on. For the testing of this type of equipment, in addition to paying attention to whether the interaction of signaling messages is correct, it is also necessary to verify whether the voice functions including playback, number collection, recording, text-to-speech conversion, and automatic voice recognition are correct. Protocol testing of voice equipment also requires functional testing of the voice function of the voice equipment. However, in the current voice equipment testing, automated testing is limited to the protocol testing level, that is, it only focuses on the testing of signaling message interaction, while almost no or only very limited automation is achieved in voice function testing. the

Until now, when testing the voice function of voice equipment, it is often necessary to build a set of public switched telephone network (PSTN, Public Switched Telephone Network), service switching point (SSP, Service Switching Point), computer telecommunications integration (CTI, Computer Telecom Integration) and other real test environments, connect the voice device under test and the phone that sends the test tone to the real test environment, the testers use manual operations, through one-time dialing, two-time dialing, etc. to test, and need to personally listen Whether receiving and playing the sound is correct, judging whether the voice equipment receives the number correctly, etc. to complete the test. Since this testing method needs to use all real environments, it consumes a lot of testing resources, and the cost of setting up and maintaining the environment is very high. In addition, testers are required to perform manual operations during the testing process, and the cost of repeated regression testing is also high, which affects the enthusiasm of testers. the

In view of the above-mentioned shortcomings of all manual testing, some countries and enterprises have developed special voice equipment testing tools, such as a series of voice equipment testing tools developed and produced by American Ameritec. This type of test tool is mainly used to test the performance of the voice equipment, which can partially simulate the PSTN to drive the voice equipment under test. the

However, the use of such test tools also requires the establishment of a real test environment, and the cost of setting up and maintaining the environment is high; in addition to writing test scripts for voice equipment, it is also necessary to write business scripts for such test tools to meet testing needs; The development of technology is changing with each passing day. Such special voice equipment test tools often lag behind the technical development of the voice equipment under test, and it is difficult to meet the test requirements. In addition, the development cost of such special voice equipment testing tools is high. Due to the pressure of testing progress, the development cycle is often short, and the tools themselves are often not stable enough, which affects test execution. the

To sum up, it can be seen that no matter whether the voice function test of the voice device is completed by manual dialing or the test is performed by using a special voice device test tool, there is a need to build a real test environment, which consumes a lot of test resources, and the test efficiency is low and difficult to meet. Disadvantages of testing requirements. It can be seen that the voice function test of the voice equipment is very difficult, and it is difficult to realize the automation of the voice function test. the

Contents of the invention

In view of this, the main purpose of the present invention is to provide a system for realizing the function test of voice equipment, which reduces the occupation of the environment for the test of the voice function, and realizes the automation of the test of the voice function at low cost and high efficiency. the

Another object of the present invention is to provide a method for realizing the function test of the voice equipment, which reduces the occupation of the test environment by the voice function test, and realizes low-cost and high-efficiency voice function test automation. the

In order to achieve the above object, the present invention provides a system for realizing the function test of voice equipment, including the voice equipment under test, which is used to receive the test tone and generate the response result to the test tone, and the system also includes the combined representation of tree and table- 2TTCN2 module and test tone simulation module, wherein,

The TTCN2 module is connected with the voice equipment under test and the test tone simulation module, and is used for simulating the signaling message and service message required by the voice equipment under test, and controls the test tone simulation module to send the test tone to the voice equipment under test. Whether the response result of the tested voice device to the test tone is consistent with the preset result, and determine whether the voice function of the tested voice device is normal;

The test sound simulation module is connected with the tested voice device through the voice interface of the tested voice device, and is used to send the test sound to the tested voice device under the control of the TTCN2 module. the

The TTCN2 module includes a signaling message simulation unit, a business message simulation unit and a comparison and judgment unit, wherein the signaling message simulation unit is used to simulate the signaling message written by TTCN2 required for testing the voice equipment under test, and the tested voice The equipment interacts with signaling messages; the business message simulation unit is used to simulate the business messages written in accordance with TTCN2 required for testing the voice equipment under test, interact with the voice equipment under test for business messages, and control the test tone simulation module to send The voice device sends a test sound; the comparison and judgment unit is used to judge whether the response result of the tested voice device to the test sound is consistent with the preset result, and determine whether the voice function of the tested voice device is normal. The TTCN2 module may further include: an output unit for outputting the judgment result of the comparison judgment module. the

The service message simulation unit includes a service message simulation subunit of the voice device under test and a test tone simulation module control subunit, wherein the service message simulation subunit of the voice device under test is used for simulating the test voice equipment required according to TTCN2 The written business message interacts with the voice device under test; the test tone simulation module controls the subunit to control the test tone simulation module to send a test tone to the voice device under test. the

The test tone simulation module includes a telephone set and a test adapter, wherein the telephone set is connected with the voice device under test through the test adapter, and the TTCN2 module is connected with the test adapter, and is used to control the test adapter to dynamically send the telephone set of the test tone Connect to the time slot that matches the voice interface of the voice device under test. The test adapter may be a telecommunications switch. the

The test tone simulation module is a special voice equipment test tool, and the special voice equipment test tool is connected with the TTCN2 module, and is used to simulate a telephone set to send a test tone to the voice equipment under test under the control of the TTCN2 module. the

The test tone simulation module is the same voice equipment as the voice equipment under test, and the voice equipment is connected with the TTCN2 module, which is used to simulate the telephone to send the voice equipment under test under the control of the TTCN2 module. the

Described TTCN2 module is arranged in the computer, is carried out by computer, and this system further comprises adapter, is connected between the computer that arranges TTCN2 module and the voice equipment under test, is used for the Transmission Control Protocol TCP/Internet Protocol IP that computer supports Become the No. 7 signaling supported by the voice device under test. the

The present invention also provides a system for realizing the function test of the voice equipment, including the voice equipment under test, which is used to receive the test tone and generate a response result to the test tone. The system also includes a TTCN2 module and a test tone simulation module, wherein,

The TTCN2 module is connected with the voice equipment under test and the test tone simulation module, and is used to simulate the signaling messages and business messages required for testing the voice equipment under test, and controls the test tone simulation module to dynamically connect to the voice equipment under test, receive and output The response result of the tested voice device to the test tone;

The test sound simulation module is connected with the tested voice device through the voice interface of the tested voice device, and is used for sending the test sound to the tested voice device. the

The test tone simulation module includes a telephone set and a test adapter, wherein the telephone set is connected with the voice device under test through the test adapter, and the TTCN2 module is connected with the test adapter, and is used to control the test adapter to dynamically send the telephone set of the test tone Connect to the time slot that matches the voice interface of the voice device under test. The test adapter is a telecommunications switch. the

The TTCN2 module includes a signaling message simulation unit, a service message simulation unit and an output unit, wherein the signaling message simulation unit is used for simulating the signaling message written by TTCN2 required for testing the voice equipment under test, and the tested voice The equipment interacts with signaling messages; the business message simulation unit is used to simulate the business messages written in accordance with TTCN2 required for testing the voice equipment under test, and interacts with the voice equipment under test for business messages; the output unit interacts with the business message simulation unit Connected to output the response result to the test tone reported by the voice device under test. the

The service message simulation unit includes a service message simulation subunit of the voice device under test and a test tone simulation module control subunit, wherein the service message simulation subunit of the voice device under test is used for simulating the test voice equipment required according to TTCN2 The written business message interacts with the voice device under test; the test tone simulation module control subunit is used to control the dynamic connection of the test tone simulation module to the voice device under test. the

The present invention additionally provides a method for realizing voice equipment functional testing, the method comprising:

A. Send the control message written according to TTCN2 required for testing the voice device under test, and drive the voice device under test to enter the state of receiving the test tone;

B. Send a test tone to the voice device under test, and the voice device under test responds to the test tone;

C. Judging whether the response result of the voice device under test is consistent with the preset result, and determining whether the voice function of the voice device under test is normal. the

Sending the test tone to the voice device under test described in step B includes: sending a message written according to TTCN2, and controlling the special voice device test tool connected to the voice device under test to send the test tone to the voice device under test. the

Sending the test tone to the voice device under test described in step B includes: sending a message written according to TTCN2, and controlling the same voice device connected to the voice device under test as the voice device under test to send the test tone to the voice device under test. the

The sending the test tone to the voice device under test in step B includes: sending the test tone to the voice device under test through the telephone set via the test adapter. the

As can be seen from the above technical solutions, the system and method for realizing the voice equipment function test provided by the present invention have the following beneficial effects: in the voice equipment function test, the protocol test tool TTCN2 is introduced to simulate the required signaling messages of the voice equipment under test and business information, combined with testing methods such as voice equipment testing tools, to realize semi-automation and full automation of voice equipment function testing; in addition, because the TTCN2 module is used to simulate the networking of the real test environment, the test environment is greatly simplified and equipment investment is saved , which saves the construction and maintenance time of the test environment, and the TTCN2 module can be used in the protocol test and function test stages, so the normalization of test tools and the reuse of test scripts can be realized. the

Description of drawings

Fig. 1 is the environmental networking of the voice equipment function semi-automated test according to Embodiment 1 of the present invention

Fig. 2 is a schematic diagram of the composition structure of the TTCN2 module according to Embodiment 1 of the present invention;

Fig. 3 is a message interaction diagram of the semi-automatic test of the number receiving function in the voice equipment function test according to Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of the composition structure of the TTCN2 module according to Embodiment 2 of the present invention;

Fig. 5 is the environmental networking diagram of the fully automatic test of voice equipment function according to the third embodiment of the present invention;

Fig. 6 is a message interaction diagram of a fully automated test of the number receiving function in the voice device function test according to Embodiment 3 of the present invention. the

Detailed ways

In order to make the advantages and features of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments with reference to the accompanying drawings. the

The purpose of telecom voice equipment is to provide voice resources for the telecom network and realize value-added services and intelligent network services. The external interface of such equipment generally includes three parts:

Signaling interface: Telecom voice equipment interacts with external equipment for signaling messages through the signaling interface. Signaling generally uses No. 7 signaling, which is used as the basic message driver for telecom voice equipment;

Voice interface: Telecom voice equipment generally uses E1 trunk lines to connect with external equipment to receive and provide voice resources;

Service interface: Telecom voice equipment interacts with external equipment for business messages through the service interface to control telecom voice equipment to implement various services. Generally, a message interface based on Transmission Control Protocol (TCP, Transmission Control Protocol) is used. the

For the signaling interface, the present invention considers the operation of the signaling message interaction aspect, and can adopt the combination representation method-2 (TTCN2, Tree and Tabular Combined Notation-2) of the protocol test tool tree and table specified by the international standard to simulate the communication through telecommunication. The signaling message of the voice equipment signaling interface realizes the message drive required for protocol testing and voice equipment function testing; for the service interface, the international standard TTCN2 can also be used to simulate the business message passing through the service interface of the telecommunications voice equipment, in order to avoid testing In the process, the service script is constantly modified according to the test content, and all test required service messages can also be written according to TTCN2, so as to carry out service control to the telecommunication voice equipment; The telephone is connected to the voice interface through the test adapter, and the test tone is sent manually through the telephone dial, and then judges whether the reception and playback are correct, so as to realize the semi-automatic voice function test; another solution is to use the dedicated voice equipment The test tool is connected to the voice interface of the voice device under test, and simulates the test tone sent manually through the telephone to test functions such as receiving and playing, and realizes a fully automated voice function test. the

The main idea of the present invention is: use the TTCN2 module to simulate the signaling message and service message required for testing the voice equipment under test, shield the real environment of testing the voice equipment under test, and send the test tone to the voice equipment under test by controlling the test tone simulation module. Tone, to test the voice device under test. the

In the following, the semi-automated and fully-automated speech function testing schemes are respectively described in combination with Embodiment 1, Embodiment 2 and Embodiment 3. Among them, the first embodiment is a semi-automatic test scheme, which requires the tester to input the test tone through the telephone, and the system judges whether the test is correct; embodiment two is also an automated test scheme, and the tester inputs the test tone through the telephone and judges whether the test is correct Correct; Embodiment 3 is a fully automated test solution, in which the system automatically controls the input of test sounds and judges whether the test is correct. the

Embodiment one

First, referring to FIG. 1 , FIG. 2 and FIG. 3 , the semi-automated solution of the function test of the voice device is described. the

Referring to FIG. 1 , FIG. 1 shows a network diagram of an environment for semi-automatic testing of voice device functions according to Embodiment 1 of the present invention. It can be seen from Figure 1 that the system for semi-automatic testing of voice equipment functions includes a TTCN2 module, a voice equipment under test and a test tone simulation module. the

The TTCN2 module is connected with the voice device under test and the test tone simulation module, and is used to simulate the signaling messages and service messages required for testing the voice device under test, and to test the voice device under test; see Figure 2, the TTCN2 module includes signaling messages A simulation unit, a service message simulation unit and a comparison and judgment unit. the

The signaling message simulation unit is connected to the signaling interface of the voice device under test, and is used to send the signaling message written according to TTCN2 to the voice device under test, and interact with the voice device under test for the Prepare for the test of the test voice device. the

The service message simulation unit is connected with the service interface of the voice device under test and the test tone simulation module, and is used to send the service message required for the test to the voice device under test, interact with the service message of the voice device under test, and control the test tone simulation The module sends a test tone to the voice device under test. According to the different business messages simulated by the business message simulation unit, the business message simulation unit can include a service message simulation subunit of the voice equipment under test and a test tone simulation module control subunit, and the business message simulation subunit of the voice equipment under test is used for communicating with the voice equipment under test. The voice device under test interacts with service messages, and the test tone simulation module control subunit is used to control the test tone simulation module to send a test tone to the voice device under test. the

The comparison and judgment unit is connected to the service message simulation unit, specifically, can be connected to the service message simulation subunit of the voice device under test in the service message simulation unit, and is used to receive the voice under test sent by the service message simulation subunit of the voice device under test The response result of the device to the test tone, and judge whether the response result is consistent with the preset result. Usually, the correct result of the test case of the voice device under test is pre-stored in the comparison and judgment unit, and the voice device under test responds to the test tone and sends the response result to the business message simulation unit, and the business message simulation unit sends the response result to After arriving at the comparison and judgment unit, the comparison and judgment unit compares the preset result with the response result sent by the voice device under test, judges whether the two are consistent, and determines whether the voice function of the voice device under test is normal. the

The TTCN2 module may further include an output unit connected to the comparison and judgment unit for outputting the judgment result of the comparison and judgment unit. the

The TTCN2 module can be set in a computer and executed by the computer. At this time, in order to enable the computer based on the TCP/IP transmission protocol to communicate with the tested voice device based on No. 7 signaling, it is also necessary to set an adapter between the computer where the TTCN2 module is located and the tested voice device. It is a signaling adapter, whose function is to convert the TCP/IP protocol supported by the computer into the No. 7 signaling supported by the voice device under test, so that the two can communicate. the

In this embodiment, the test tone simulation module includes a test adapter and a telephone set. Since a real test environment is not set up, the voice interface of the voice device under test does not match the interface of the telephone set. A test adapter is set between them, and the phone is connected to the voice interface of the tested voice device through the test adapter, and is used to send a test tone to the tested voice device. In addition, the tested voice device may also be connected to multiple telephones, for example, in Fig. In 1, the voice device under test is connected to three telephones. During the test in this case, the circuit time slot for the audio signal sent by the telephone must match the time slot received by the voice device under test, so the function of the test adapter is still Under the control of the test tone simulation module control subunit included in the business message simulation unit, the telephone set that sends out the audio signal is dynamically connected to the E1 time slot that matches the voice device under test, which can be realized by general telecommunication switches For this function, for example, Huawei's CC08 switch can implement this function by using a semi-permanent connection. the

The process of using the TTCN2 module to test the voice device under test is as follows: the signaling message simulation unit of the TTCN2 module sends the signaling message written according to TTCN2 required by the test to the voice device under test, and interacts with the voice device under test for signaling messages. According to the needs of test cases, the business message simulation subunit of the voice device under test in the business message simulation unit sends a business message written according to TTCN2 to the voice device under test, interacts with the voice device under test, and drives the voice device under test Enter the state of receiving the test tone, and the test tone simulation module control subunit in the service message simulation unit controls the test adapter to dynamically connect the telephone set to the E1 time slot that matches the voice device under test. The machine dials to send the test tone, and the voice device under test responds according to the received test tone, and reports the response result to the service message simulation subunit of the voice device under test in the service message simulation unit of the TTCN2 module. The message simulation subunit then sends the result to the comparison and judgment unit, and the comparison and judgment unit compares the response made by the tested voice device with the pre-saved actual response that should be made to judge whether the test is correct. the

Next, referring to FIG. 3 , the message interaction process of the semi-automatic test solution is described by taking the number collection function of the voice device under test as an example. FIG. 3 shows a message interaction process of the semi-automatic test of the number collection function according to Embodiment 1 of the present invention. In Figure 3, the PSTN that is connected to the voice device under test through the signaling interface and sends signaling messages to the voice device under test is simulated by the signaling message simulation unit of the TTCN2 module, connected to the voice device under test through the service interface and sent to the voice device under test The business equipment that sends the business message of the voice equipment under test is simulated by the business message simulation unit of the TTCN2 module. The signaling message simulation unit and service message simulation unit of the TTCN2 module drive the voice device under test to enter the state of talking and receiving numbers. The tester only manually dials several numbers according to the needs of the test case during the call phase to generate an audio analog signal. The audio analog signal is converted into a digital signal through the analog/digital conversion of the test adapter, and the voice device under test receives the digital signal and restores it. The completed telephone number is reported to the comparison and judgment unit of the TTCN2 module, and the comparison and judgment unit of the TTCN2 module judges whether the number collection is correct, thereby completing the test of the voice equipment collection function. The semi-automatic testing process and steps of the number collection function are as follows:

Step 301-Step 305: Establish a call. The signaling message simulation unit of the TTCN2 module simulates PSTN to send an initial address message (IAM) to the voice device under test. After the voice device under test receives this message, it sends the message SP_Setup to the service message simulation unit of the TTCN2 module. The service message simulation unit Process the message, then send back an acknowledgment message SP_SetupAck and called ringing message SP_Alerting to the voice device under test, the voice device under test sends an address full message (ACM) to the signaling message simulation unit of the TTCN2 module, and sends a message to the service of the TTCN2 module The message simulation unit sends a notification message SP_Notify. The business message simulation unit of the TTCN2 module then sends an answer message SP_Answer to the voice device under test. After receiving the answer message, the voice device under test returns an acknowledgment message SP_AnswerAck, and sends an answer message (ANC) to the signaling message simulation unit of the TTCN2 module. , the above entire process is processed by writing TTCN2 scripts in the TTCN2 module to simulate the PSTN and service platform in the real test environment. Through the interaction of the above messages, the voice device under test is ready to receive numbers. the

Step 306-Step 307: call. After step 301-step 305, the voice device under test has entered a normal conversation phase. In the comparison and judgment unit of the TTCN2 module, the test content and correct test results to be tested will be saved in advance according to the needs of the test cases. The business message simulation unit of the TTCN2 module sends the message SP_DigitCollect to start the digit collection to the voice device under test, and the voice device under test enters the digit collection state. At this time, the tester manually dials the number on the telephone according to the test case. For example, the test case needs to dial 1, Then the tester sends the test tone by dialing number 1 on the telephone, and the audio analog signal generated by dialing 1 is converted into a digital signal through the test adapter, and then transmitted to the voice device under test through the voice interface of the voice device under test, and the voice device under test Restore the received digital signal to a phone number, and report it to the comparison and judgment unit of the TTCN2 module through the message SP_DigitResult, and the comparison and judgment unit compares the phone number contained in the message SP_DigitResult with the phone number that should be received by the voice device under test saved in advance , to confirm that the test is correct. the

Generally speaking, the TTCN2 module can be set in the computer. At this time, the test results can be output through the computer screen or through other sound output devices. the

Step 308: End the call. After the number collection function test is over, the service control message simulation unit of the TTCN2 module sends the call release message SP_Release, the voice device under test disconnects the call, and the test ends. the

From the above steps, it can be seen that since the TTCN2 module adopts the protocol test tool TTCN2 which is stipulated by international standards, it can simulate PSTN, SSP, CTI and other equipment in terms of signaling and business without setting up a real test environment, thus greatly It simplifies the test environment, saves equipment investment, reduces the construction time of the test environment, and improves the test efficiency. During the test, only the simple dial-up of the tester can realize the semi-automatic test of the number receiving function of the tested voice device. In addition, TTCN2 scripts for testing other voice functions can also be written in the TTCN2 module to test other voice functions at one time, such as playback and recording. the

Example two

Referring to FIG. 4 , it is a schematic diagram illustrating another composition and structure of the TTCN2 module in the semi-automatic voice device function test solution. FIG. 4 shows a schematic diagram of the composition and structure of the TTCN2 module according to this embodiment. In this embodiment, the environmental networking and test process of the voice device function semi-automatic test are similar to the first embodiment, the difference is that the test result is not judged by the comparison and judgment module of the TTCN2 module, but by the tester himself. Correct, at this time, referring to Figure 4, the TTCN2 module may not include a comparison and judgment unit, and the output unit is directly connected to the service message simulation unit of the TTCN2 module, specifically, it can be connected to the service message simulation of the voice device under test in the service message simulation unit The subunit is used to receive the response result reported by the tested voice device from the service message simulation subunit of the tested voice device and output it, and the tester judges whether the output response result is consistent with the test tone input by himself through the telephone set, thereby The test can be done. TTCN2 can generally be executed by computer. At this time, the test result reported by the tested voice device can be output through the computer screen or sound output device, so the tester can judge whether the test is correct by looking at the screen or listening to the sound. the

Embodiment three

Next, referring to FIG. 5 and FIG. 6 , a fully automated solution for functional testing of voice equipment will be described. the

Referring to FIG. 5 , FIG. 5 shows a network diagram of an environment for fully automated testing of voice device functions according to Embodiment 3 of the present invention. As can be seen from Fig. 5, similar to that described in Embodiment 1, the system for realizing the fully automated testing of voice equipment functions also includes a TTCN2 module, a voice equipment under test and a test tone simulation module. The difference is that in this embodiment, The test tone simulation module is a voice device testing tool. the

Similar to Embodiment 1, the TTCN2 module is connected with the voice equipment under test and the voice equipment testing tool of the test tone simulation module, and is used for testing the voice equipment under test. Similarly, the TTCN2 module also includes a signaling message simulation unit, a service message simulation unit and a comparison and judgment unit. The service message simulation unit may include a service message simulation subunit of the voice device under test and a test tone simulation module control subunit. The difference from Embodiment 1 is that the test tone simulation module control subunit is used in this embodiment to test the voice equipment. The tool sends a control message to control the voice device testing tool to send a test tone to the voice device under test. Other units of the TTCN2 module and the principle and process of using the TTCN2 module for testing are the same as those in Embodiment 1, and will not be repeated here. the

The voice device testing tool is connected to the voice device under test through the voice interface of the voice device under test, and is used to send a test tone for testing the function of the voice device to the voice device under test under the control of the TTCN2 module. The effect of voice equipment testing tool is similar to the telephone set in embodiment one, just need not manually dial to produce test tone, but under the control of the control subunit of test tone simulation module, by the playback voice that voice equipment testing tool itself has The function is realized. The voice equipment testing tool may adopt a dedicated tool, for example, a dedicated voice equipment testing tool produced by Ameritec Corporation of the United States. In addition, it is also possible to directly use the same voice equipment as the voice equipment under test, because the voice equipment under test itself has a voice function and can play voice, so it only needs to use the function of playing voice, controlled by the TTCN2 module, to play voice and generate a test sound . the

Next, referring to FIG. 6 , the message interaction process of the fully automated test solution will be described by taking the number collection function test of the voice device under test as an example. Fig. 6 is a message interaction diagram of a fully automated test of the number receiving function in the voice device function test according to Embodiment 3 of the present invention. In Figure 6, the signaling message simulation unit of the TTCN2 module simulates PSTN, and the service message simulation unit simulates related business equipment to drive the voice equipment under test to enter the state of talking and receiving numbers. The voice device test tool only plays dual-tone multi-frequency (DTMF, Dual ToneMulti-Frequency) voice under the control of the service message simulation unit of the TTCN2 module after entering the conversation stage, and simulates the number generated by the dialing of the tester by the telephone, specifically, The fully automated testing process and steps of the number collection function are as follows:

Step 601-Step 605: Establish a call. The signaling message simulation unit of the TTCN2 module simulates PSTN to send an initial address message (IAM) to the voice device under test. After receiving the message, the voice device under test sends a message SP_Setup to the service message simulation unit of the TTCN2 module, and the service message simulation unit processes This message sends an acknowledgment message SP_SetupAck and called ringing message SP_Altering back to the voice device under test. Then the voice device under test sends an address complete message (ACM) to the signaling message simulation unit of the TTCN2 module, and sends a notification message SP_Notify to the service message simulation unit module of the TTCN2. Subsequently, the service message simulation unit of the TTCN2 module sends an answer message SP_Answer to the voice device under test. The message simulation unit sends back an answer message (ANC). The above is the call establishment stage, which is the preparation of the signaling message and service message that must be done in order to realize the number receiving test. the

Step 606-Step 610: Call. At this time, the voice device under test has entered the normal conversation stage, and the service message simulation unit of the TTCN2 module sends the message SP_DigitCollect to start receiving digits to the voice device under test, and the voice device under test enters the digit collection state. At this time, the test tone simulation module control subunit of the TTCN2 module sends the message PlayDTMF of playing DTMF voice to the voice device test tool, and the voice device test tool sends the playback confirmation message PlayDTMFAck to the test tone simulation module control subunit, and the tested voice device passes The voice interface receives the voice played by the voice device test tool, which is the same type of signal as the signal converted by the test adapter in Embodiment 1. After the voice device under test receives the signal, it will be converted into a phone number, and the voice device The test tool sends the message Play_End to the control subunit of the test tone simulation module of the TTCN2 module. After playing and receiving, the voice device under test reports the restored telephone number to the comparison and judgment unit of the TTCN2 module through the message SP_DigitResult. the

The comparison and judgment unit of the TTCN2 module pre-saves the test content and test results according to the test case. The unit only needs to compare the saved phone number with the phone number reported by the voice device under test. If the two are consistent, it means that the received number is correct, otherwise it means that the received number is wrong. In this way, the test of the number receiving function of the voice device under test is realized. For example, the comparison and judgment unit of the TTCN2 module saves the phone number 1 in advance, and after the voice device under test finishes receiving the number and reports the number collection result to the comparison and judgment unit, the comparison and judgment unit compares the result reported by the voice device under test with the comparison and judgment unit in advance. Compare the stored 1's to determine whether the received numbers are consistent. the

In addition, during the test, it is necessary to pay attention to the coordination of the circuit time slots on both sides of the voice device under test and the voice device test tool, that is, the time slots for sound playback and number collection on both sides must be consistent. Because both sides are controlled by the TTCN2 module, so only the signaling message simulation unit of the TTCN2 module needs to carry the circuit identification code (CIC, Circuit Identification Code) in the IAM message when initiating a call, and then notify the test tone simulation module control unit unit, the test tone simulation module control subunit notifies the voice device test tool to play DTMF voice on the circuit with the CIC, which can ensure that the time slots on both sides are consistent. the

Step 611: End the call. After the number collection function test is over, the comparison and judgment unit triggers the service message simulation unit to send the call release message SP_Release, the voice device under test disconnects the call, and the test ends. the

As can be seen from the above steps, the present invention does not need a real test environment, and only needs to respectively simulate the signaling messages and services required by the signaling message simulation unit and the service message simulation unit of the TTCN2 module to test the number collection function of the voice device under test Message, through comparison and judgment by the comparison and judgment unit of the TTCN2 module, a fully automated test of the number collection function of the voice device under test can be realized. In addition, TTCN2 scripts for testing other voice functions can also be written in the TTCN2 module to test other voice functions at one time, such as playback and recording. the

The above three embodiments only take the number receiving function test of the voice equipment under test as an example, and describe the process and steps of the voice function test. However, the method provided by the present invention is applicable to other voice function tests of the voice equipment, and uses The TTCN2 protocol can write all signaling messages and services at one time, and test multiple services and multiple voice functions on a set of voice equipment under test at the same time, so as to achieve the purpose of test script reuse and avoid manual testing based on test cases. The problem of needing to constantly replace business scripts. the

From the description of the above three embodiments, it can be seen that the present invention is to simulate the control message through the signaling interface and the service interface of the telecommunication voice equipment by adopting the TTCN2 module, and shield the real test environment, so as to realize test automation and save test resources and cost. the

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. the

Claims (18)

1. A system that realizes the function test of voice equipment, including the voice equipment under test, is used to receive the test tone, and generates the response result to the test tone, it is characterized in that, the system also includes the combined representation-2TTCN2 module of tree and table and test tone simulation modules, where, The TTCN2 module is connected with the voice equipment under test and the test tone simulation module, and is used for simulating the signaling messages and service messages required by the voice equipment under test, and controls the test tone simulation module to send the test tone to the voice equipment under test. Whether the response result of the tested voice device to the test tone is consistent with the preset result, and determine whether the voice function of the tested voice device is normal; The test sound simulation module is connected with the tested voice device through the voice interface of the tested voice device, and is used to send the test sound to the tested voice device under the control of the TTCN2 module. the 2. The system according to claim 1, wherein the TTCN2 module includes a signaling message simulation unit, a service message simulation unit and a comparison judgment unit, wherein, The signaling message simulation unit is used to simulate the signaling message written according to TTCN2 required by the voice device under test for simulating the interaction of the signaling message with the voice device under test; The business message simulation unit is used for simulating the business message written according to TTCN2 required by the voice device under test for simulating, interacting with the voice device under test for business messages, and controlling the test tone simulation module to send a test tone to the voice device under test; The comparison and judging unit is used to judge whether the response result of the tested voice device to the test sound is consistent with the preset result, and determine whether the voice function of the tested voice device is normal. the 3. system according to claim 2, is characterized in that, described TTCN2 module further comprises: The output unit is used to output the judgment result of the comparison judgment unit. the 4. system according to claim 2, it is characterized in that, described business message simulation unit comprises tested voice equipment business message simulation subunit and test tone simulation module control subunit, wherein, The service message simulation subunit of the voice device under test is used to simulate the service message written according to TTCN2 required by the voice device under test, and interact with the service message of the voice device under test; The test tone simulation module control subunit is used to control the test tone simulation module to send the test tone to the voice device under test. the 5. system according to claim 1,2,3 or 4, is characterized in that, described test tone simulation module comprises telephone set and test adapter, wherein, The telephone set is connected to the voice device under test through the test adapter, and the TTCN2 module is connected to the test adapter, and is used to control the test adapter to dynamically connect the telephone set sending the test tone to the time slot matched with the voice interface of the voice device under test . the 6. The system of claim 5, wherein the test adapter is a telecommunications switch. the 7. system according to claim 1,2,3 or 4, is characterized in that, described test tone simulation module is special-purpose voice equipment testing tool, wherein, The special voice equipment test tool is connected with the TTCN2 module, and is used to simulate the telephone set to send the test tone to the voice equipment under test under the control of the TTCN2 module. the 8. The system according to claim 1, 2, 3 or 4, wherein the test tone simulation module is the same voice equipment as the voice equipment under test, wherein, The voice equipment is connected with the TTCN2 module, and is used to simulate a telephone set to send a test tone to the voice equipment under test under the control of the TTCN2 module. the 9. The system according to claim 1, 2, 3 or 4, characterized in that, the TTCN2 module is set in the computer and is executed by the computer, and the system further includes an adapter connected to the computer and the tested TTCN2 module. Between voice devices, it is used to convert the transmission control protocol TCP/Internet Protocol IP supported by the computer into the No. 7 signaling supported by the voice device under test. the 10. A system that realizes the function test of voice equipment, including the voice equipment under test, is used to receive the test tone, and generates a response result to the test tone, it is characterized in that the system also includes a TTCN2 module and a test tone simulation module, wherein, The TTCN2 module is connected with the voice equipment under test and the test tone simulation module, and is used to simulate the signaling messages and business messages required for testing the voice equipment under test, and controls the test tone simulation module to dynamically connect to the voice equipment under test, receive and output The response result of the tested voice device to the test tone; The test sound simulation module is connected with the tested voice device through the voice interface of the tested voice device, and is used for sending the test sound to the tested voice device. the 11. The system according to claim 10, wherein the test tone simulation module comprises a telephone set and a test adapter, wherein, The telephone set is connected to the voice device under test through the test adapter, and the TTCN2 module is connected to the test adapter, and is used to control the test adapter to dynamically connect the telephone set sending the test tone to the time slot matched with the voice interface of the voice device under test . 12. The system of claim 11, wherein the test adapter is a telecommunications switch. 13. The system according to claim 10 or 11, wherein the TTCN2 module includes a signaling message simulation unit, a service message simulation unit and an output unit, wherein, The signaling message simulation unit is used to simulate the signaling message written according to TTCN2 required by the voice device under test for simulating the interaction of the signaling message with the voice device under test; The service message simulation unit is used to simulate the service message written according to TTCN2 required by the voice device under test for simulating the interaction of the service message with the voice device under test; The output unit is connected with the service message simulation unit, and is used for outputting the response result to the test tone reported by the voice device under test. 14. The system according to claim 13, wherein the service message simulation unit comprises a service message simulation subunit of the voice device under test and a test tone simulation module control subunit, wherein, The service message simulation subunit of the voice device under test is used to simulate the service message written according to TTCN2 required for testing the voice device under test, and interact with the service message of the voice device under test; The test tone simulation module control subunit is used to control the test tone simulation module to be dynamically connected to the time slot matching the voice interface of the voice device under test. 15. A method for realizing voice equipment function test, is characterized in that, the method comprises the steps: A. Send the control message written according to TTCN2 required for testing the voice device under test, and drive the voice device under test to enter the state of receiving the test tone; B. Send a test tone to the voice device under test, and respond to the test tone when the voice device under test; C. Judging whether the response result of the voice device under test is consistent with the preset result, and determining whether the voice function of the voice device under test is normal. the 16. The method according to claim 15, characterized in that, sending a test tone to the voice device under test described in step B comprises: Send a message written according to TTCN2, and control the special voice equipment test tool connected to the voice equipment under test to send a test tone to the voice equipment under test. the 17. The method according to claim 15, characterized in that, sending a test tone to the voice device under test described in step B comprises: Send a message written according to TTCN2, and control the same voice device connected to the voice device under test to send a test tone to the voice device under test. the 18. The method according to claim 15, characterized in that, sending a test tone to the voice device under test described in step B includes: Send a test tone to the voice device under test via the test adapter through the telephone. the

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