Modem communication interoperability with call waiting services

Details Modem communication interoperability with call waiting services Modem communication interoperability with call waiting services

H - Electricity

04

M

H04M 11/06 (2006.01) H04M 3/428 (2006.01) H04M 3/48 (2006.01)

Patent

CA 2171362

A novel modem communication method provides interoperability between modems and call waiting services. The method operates in conjunction with a first modem adapted for communications with a second modem over a telephonic communications link. Upon receipt of a call waiting alerting tone corresponding to a third party incoming call, the first modem sends the second modem a call waiting notification signal. In response to the call waiting notification signal, the second modem sends the first modem a call waiting acknowledgment signal, and the first and second modems enter an idle state. In the idle state, the modems remain connected to the telephonic communications link, but stop sending and receiving data. The first modem remains in the idle state until the third party incoming call is terminated, whereupon, in response to such termination, the first modem sends a resumption signal to the second modem. Upon receipt of the resumption signal, the second modem exits the idle state and resumes the sendingand receiving of data.

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