Local transfer arrangement for electronic private automatic bran

Details Local transfer arrangement for electronic private automatic bran Local transfer arrangement for electronic private automatic bran

1975-03-25

1976-06-15

Robinson, Thomas A.

H04M 354

Patent

active

039638731

ABSTRACT:
A local transfer arrangement for an electronic private automatic branch exchange having a space divided rectangular solidstate switching matrix is disclosed. The local transfer arrangement is provided with means for sensing a local transfer indication from either a calling station or a called station connected by a local junctor. The transfer indication causes the system to forward the transferring station to a second local junctor and hold the first local junctor. A transferee station is then signaled via the second local junctor of the impending local transfer by the transferring station. Thereafter, an automatic forwarding of the transferee station to the first local junctor is initiated by an on-hook condition of the transferring station to complete the operation. Additional features of the arrangement provide for a return to the original call and release of the connected junctors responsive to an on-hook or hookflash condition of the transferring station. A local three-way conference feature is also provided to establish a connection between the transferred station, transferee station, and transferring stations of the exchange.

REFERENCES:
patent: 3748396 (1973-07-01), Hestad et al.
patent: 3806661 (1974-04-01), Gueldenpfennig et al.
patent: 3859474 (1975-01-01), Gueldenpfennig et al.

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