Key telephone off-premises line circuit

Details Key telephone off-premises line circuit Key telephone off-premises line circuit

H - Electricity

04

M

379/33, 379/67

H04M 1/72 (2006.01) H04M 3/22 (2006.01) H04M 3/42 (2006.01) H04M 9/00 (2006.01)

Patent

CA 1060594

Abstract of the Disclosure An off-premises line circuit is disclosed which allows two telephone stations separated by a distance greater than lamp range to share a common central office or PBX line. Lamp signals as well as hold release commands are exchanged between stations by a signaling pair of leads. The off-premises line circuit is arranged so that either station may release the hold condition without regard as to which station established that condition.

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