|
GB2333418A
|
|
Interface
|
|
US6009165A
|
|
Full duplex speakerphone system
|
|
US5991632A
|
|
Cordless telephone and method of synchronization for secure, high-speed, high-volume data transfer
|
|
GB0006842D0
|
|
Voice mail telephone answering device
|
|
CN1161615A
|
|
Telephone answering device with improved pager access feature
|
|
US5781613A
|
|
Telephone answering device and method for screening incoming telephone calls with blocked calling party identification information
|
|
GB9723211D0
|
|
Speakerphone, speakerphone system and method of operating speakerphone
|
|
CN1141552A
|
|
Software speakerphone system and method of operating speakerphone
|
|
US5825648A
|
|
Backup system for a time of day clock in an electronic device
|
|
US5768349A
|
|
Voice mail telephone answering device
|
|
US5907596A
|
|
Calling party identification device with message function
|
|
US5761271A
|
|
Telephone answering device with improved pager access feature
|
|
US5826187A
|
|
Integrated cordless telephone with telephone answering device and method of replaying messages through a handset thereof
|
|
US5646979A
|
|
Cordless telephone with voice announced calling party identification
|
|
US5588046A
|
|
Digital telephone answering device and method of testing message storage memory therein
|
|
US5680075A
|
|
Digital automatic gain control
|
|
US5699421A
|
|
Telephone answering device with low cost dual tone multi-frequency detector
|
|
US5692042A
|
|
Speakerphone controlled by a comparator with hysteresis
|
|
US5526424A
|
|
Electronic notepad
|
|
US5577104A
|
|
Method for system and message activation based on distinctive ringing
|
