|
|
|
| 1 |
6,782,082 |
Method and system for reducing cross-talk and avoiding bridged taps
|
| 2 |
6,697,467 |
Telephone controlled entertainment
|
| 3 |
6,408,068 |
Modular telephone
|
| 4 |
6,298,132 |
Ringing-tone control device for telephone set, using audio signal sent by
caller
|
| 5 |
6,216,106 |
Method and arrangement in a communication network
|
| 6 |
6,026,306 |
Location sensitive mobility telecommunications method
|
| 7 |
5,933,488 |
Automated method and arrangement for integrating a telephone system with
an announcement system
|
| 8 |
5,930,351 |
Remote telephone ringer controller
|
| 9 |
5,619,568 |
Cordless phone with time-out controlled ringer
|
| 10 |
5,495,530 |
Low power emergency telephone mode
|
| 11 |
5,475,872 |
Portable telephone with external transmitter-receiver connections
|
| 12 |
5,461,561 |
System for recognizing display devices
|
| 13 |
5,432,844 |
Shared line answering system with enhanced extension device features
|
| 14 |
5,404,391 |
Incoming call alert system for cellular telephones without wired
connection thereto
|
| 15 |
5,365,572 |
Cordless key telephone system with multiple tenant facility
|
| 16 |
5,325,420 |
Cordless phone haaving a plurality of personal stations
|
| 17 |
5,311,582 |
Integrated cocot and regulated paystation telephone system
|
| 18 |
5,274,368 |
Method and apparatus for controlling access to a communication system
|
| 19 |
5,233,641 |
Radio telephone equipment having a sounding device for generating alert
tone indicative of response of called subscriber
|
| 20 |
5,224,150 |
Paging system
|
| 21 |
RE34,200 |
Coin fraud preventing unit and modular configurations for pay telephone
stations
|
| 22 |
5,159,627 |
Adaptive ringer for telephone terminal
|
| 23 |
5,153,907 |
Telephone system gateway interface
|
| 24 |
5,138,648 |
Public modular-telephone management system
|
| 25 |
5,127,045 |
Identifying telephone controller system
|
| 26 |
5,111,499 |
Cordless telephone apparatus having a ringer circuit operable during
power failure
|
| 27 |
5,107,155 |
Vibrator motor for wireless silent alerting device
|
| 28 |
5,099,513 |
Integrated circuit for generating a melody and ring
|
| 29 |
5,058,151 |
Multi-user cordless telephone capable of discernibly notifying each user
|
| 30 |
5,047,763 |
Selective call system with message rebroadcasting over another selective
call system
|
| 31 |
5,015,886 |
Programmable sequential-code recognition circuit
|
| 32 |
4,974,257 |
Modular public telephone for outside use
|
| 33 |
4,943,997 |
Device for communicating a doorside intercom set with a remote telephone
|
| 34 |
4,890,317 |
Automatic validation of telephone account numbers
|
| 35 |
4,868,558 |
Paging system lata switch
|
| 36 |
4,866,431 |
Paging system hub switch
|
| 37 |
4,857,884 |
Paging system
|
| 38 |
4,856,055 |
Controllable telephone annunciator
|
| 39 |
4,682,148 |
Display pager having memory overflow indication and concurrent message
display functions
|
| 40 |
4,611,098 |
Coded telephone access system
|
| 41 |
4,578,542 |
Line powered flasher circuit for ringing signal
|
| 42 |
4,563,680 |
Digital radio paging receiver
|
| 43 |
4,480,154 |
Automatic telephone silencer
|
| 44 |
4,480,153 |
Musical-output adapter for telephones
|
| 45 |
4,455,548 |
Call system and methods and apparatus for operating same
|
| 46 |
4,446,334 |
Telephone number coding device
|
| 47 |
4,431,991 |
Encoder for transmitted message deactivation code
|
| 48 |
4,427,980 |
Encoder for transmitted message activation code
|
| 49 |
4,425,479 |
Apparatus for annunciating the completion of a telephone call hold
interval
|
| 50 |
4,424,514 |
Decoder for transmitted message activation code
|
