CA812300A - Telephone line concentrator signaling system - Google Patents

Telephone line concentrator signaling system

Info

Publication number
CA812300A
CA812300A CA812300A CA812300DA CA812300A CA 812300 A CA812300 A CA 812300A CA 812300 A CA812300 A CA 812300A CA 812300D A CA812300D A CA 812300DA CA 812300 A CA812300 A CA 812300A
Authority
CA
Canada
Prior art keywords
telephone line
signaling system
line concentrator
concentrator
signaling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA812300A
Inventor
W. Zebe Charles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA812300A publication Critical patent/CA812300A/en
Expired legal-status Critical Current

Links

CA812300A Telephone line concentrator signaling system Expired CA812300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA812300T

Publications (1)

Publication Number Publication Date
CA812300A true CA812300A (en) 1969-05-06

Family

ID=36284801

Family Applications (1)

Application Number Title Priority Date Filing Date
CA812300A Expired CA812300A (en) Telephone line concentrator signaling system

Country Status (1)

Country Link
CA (1) CA812300A (en)

Similar Documents

Publication Publication Date Title
CA936291A (en) P.c.m. telephone system
CA918808A (en) Switching system
IL35384A0 (en) Voice transmission system
CA924033A (en) Subscriber long line extender
CA926512A (en) Telecommunications system
CA937663A (en) Telecommunication systems
CA926467A (en) Signalling system
CA812300A (en) Telephone line concentrator signaling system
CA811778A (en) Telephone line concentrator priority call system
CA922030A (en) Telephone system
CA809747A (en) Telephone system
CA943656A (en) Tone signaling system
CA944837A (en) Tone signaling system
CA928818A (en) Tone signaling system
CA807313A (en) Telephone reporting system
CA815120A (en) Selective call system
CA811777A (en) Telephone switching system
AU428715B2 (en) Telephone paging system
ZA702512B (en) Pcm switching system
ZA705699B (en) Pcm switching system
CA815601A (en) Telephone system with added main line subscriber facilities
AU448266B2 (en) Signalling system
CA811782A (en) Telephone line hunting system
AU3993668A (en) Telephone switching system
AU434689B2 (en) Distributed subscriber carrier-concentrator system