Distinctive ringing and distinctive call-waiting tones in an ISD

Details Distinctive ringing and distinctive call-waiting tones in an ISD Distinctive ringing and distinctive call-waiting tones in an ISD

1996-12-05

1999-09-14

Weaver, Scott

Telephonic communications

Supervisory or control line signaling

Signal reception at substation

379 9301, 455414, H04M 302

Patent

active

059534079

ABSTRACT:
In a multi-service wireless, or wired, integrated services digital network, the type-of-call information in a call setup message may indicate the call is a voice call, a fax call or a data call. This information is used to generate a distinctive ring at the called subscriber unit, provided the called subscriber unit is not busy with another call. If the called subscriber unit is busy with a voice call, then a distinctive call waiting tone signal is generated based on the type-of-call information.

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