Patents Assigned to Aastra Corporation
  • Patent number: 5481594
    Abstract: An audio caller identification unit is connected between a user's telephone and a telephone exchange providing calling party identification, such as calling number or name. The unit has user accessible audio inputs, either a microphone or an interface to a handset of the telephone. The unit also has audio message memory, a user programmable table of concordance for tacking the location of audio messages, a record/playback device, a speaker, and a controller. The unit may also have a visual display. Control keys may be connected to the controller, however their function may also be performed by using a keypad of the telephone. A speech generator may also be connected to the controller and to the speaker. In operation, the unit has programming, review, and monitoring modes.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: January 2, 1996
    Assignee: Aastra Corporation
    Inventors: Francis N. Shen, Anthony P. Shen, Eric C. Edwards, Gerrard B. Schmid, Grigor K. Kotzev