Telephone substation transmitter muting circuit

Details Telephone substation transmitter muting circuit Telephone substation transmitter muting circuit

Category

H - Electricity

Subcategory

04

Subsubcategory

M

CPC

379/73

IPC codes

H04M 1/00 (2006.01) H04M 3/428 (2006.01)

Type

Patent

Patent number

CA 1206651

Description

TELEPHONE SUBSTATION TRANSMITTER MUTING CIRCUIT ABSTRACT OF THE DISCLOSURE A telephone substation transmitter muting circuit used in a substation having a hold function wherein, a transistor turns on connecting a muting network across the handset transmitter whenever the hold circuit is activated.

Application Number

442053

Affiliated with

Also associated with

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