Adjusting music length to expected waiting time while caller...

Advanced call waiting processing

Advanced call waiting processing

Advanced call waiting processing

AIN call queuing

Apparatus and method for call-waiting event interception

Apparatus and method for called-party telephone messaging...

Apparatus and method for CNG detection with call waiting

Apparatus for blocking voice band signals when receiving caller

Apparatus, method and system for personal telecommunication...

Call forwarding on busy or no answer when call waiting is active

Call forwarding on busy or no answer when call waiting is...

Call hold state notification across a communications network

Call rerouter method and apparatus

Call waiting caller identifier

Call waiting calling party defined content

Call waiting cancellation device

Call waiting in call setup

Call waiting indicating method and system

Call waiting messaging