Post answer telephone call redirection or rerouting
Pre-qualifying call-back service
Presence based callback
Procedure for establishment of communication between two...
Security features for an integral PLC modem
Selection of ringback tone indicative of emotional state...
Self-generating return call service
Service activation upon automatic callback and automatic...
Service bureau caller ID collection with ISDN BRI
Service in a communications network
Service provision in a telecommunications network
Service unit for supporting the establishment of calls, as well
Single telephone number access to multiple communications...
Station controller for enhanced multi-line pick-up in centrex ex
Switchless automatic call distribution system
Switchless automatic call distribution system used with a combin
System and method for call completion on busy subscribers
System and method for long distance automatic call-back
System and method for minimizing queue callback faults
System and method for on-hold call back