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Class Information
Number: 379/230
Name: Telephonic communications > Plural exchange network or interconnection > Interexchange signalling > Signalling path distinct from trunk (e.g., ccis)
Description: Subject matter wherein the control or supervisory signals for a group of trunks are multiplexed and transmitted over a single separate communication channel.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4694452 |
Switching configuration for a telecommunications system in particular a PBX system with subscriber lines, trunk groups, and interface modules |
Sep. 15, 1987 |
| 4672603 |
Combined analog/digital CCIS data transmitter/receiver circuit |
Jun. 9, 1987 |
| 4669113 |
Integrated network controller for a dynamic nonhierarchical routing switching network |
May. 26, 1987 |
| 4620066 |
Method and apparatus for sharing operators among assistance systems |
Oct. 28, 1986 |
| 4611096 |
Telephone office service assist and handoff |
Sep. 9, 1986 |
| 4555594 |
Telephone interexchange signaling protocol |
Nov. 26, 1985 |
| 4527157 |
Single fault tolerant CCIS data link arrangement |
Jul. 2, 1985 |
| 4499336 |
Common channel interoffice signaling system |
Feb. 12, 1985 |
| 4466062 |
Apparatus for CCIS data transfer between a CPU and a plurality of data terminal equipment |
Aug. 14, 1984 |
| 4446337 |
Method and apparatus for revertive automatic intercept message delivery in a telephone system |
May. 1, 1984 |
| 4313035 |
Method of providing person locator service |
Jan. 26, 1982 |
| 4313036 |
Distributed CBX system employing packet network |
Jan. 26, 1982 |
| 4310727 |
Method of processing special service telephone calls |
Jan. 12, 1982 |
| 4191860 |
Data base communication call processing method |
Mar. 4, 1980 |
| 4166929 |
Interoffice callback arrangement |
Sep. 4, 1979 |
| 4162377 |
Data base auto bill calling using CCIS direct signaling |
Jul. 24, 1979 |
| 4042785 |
Marker for telecommunication system |
Aug. 16, 1977 |
| 4013843 |
Marker for extending calls to remote junctions in a telecommunications system |
Mar. 22, 1977 |
| 3967073 |
PBX automatic number identification system |
Jun. 29, 1976 |
| 3940570 |
Apparatus for combining a central telephone trunk line with a customer telephone trunk line |
Feb. 24, 1976 |
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