Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/26—Devices for calling a subscriber
  • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
  • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
  • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
  • H04M1/27467—Methods of retrieving data
  • H04M1/27475—Methods of retrieving data using interactive graphical means or pictorial representations
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
  • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H2219/00—Legends
  • H01H2219/002—Legends replaceable; adaptable
  • H01H2219/01—Liquid crystal
  • H01H2219/012—Liquid crystal programmable
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H2231/00—Applications
  • H01H2231/022—Telephone handset
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
  • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
  • H04M1/6775—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers by providing access to preprogrammed keys

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Computer Security & Cryptography (AREA)
• Mobile Radio Communication Systems (AREA)
• Transceivers (AREA)
• Telephone Set Structure (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=19770960

Family Applications (1)

Country Status (5)

Families Citing this family (12)

Family Cites Families (6)

• 2000
  • 2000-03-08 NL NL1014587A patent/NL1014587C2/en not_active IP Right Cessation
• 2001
  • 2001-03-05 RU RU2002126606/09A patent/RU2002126606A/en not_active Application Discontinuation
  • 2001-03-05 WO PCT/NL2001/000130 patent/WO2001067725A2/en not_active Ceased
  • 2001-03-05 AU AU2001242852A patent/AU2001242852A1/en not_active Abandoned
  • 2001-03-05 EP EP01915904A patent/EP1262053A2/en not_active Withdrawn

Also Published As

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