Network based voice mail with call screening
Network based voice mail with call screening
Network based voice mail with call screening
Optimal call coverage method and apparatus
Person to person telephone services
Personal calendaring, schedules, and notification using...
Region-wide messaging system and methods including...
Region-wide messaging system and methods including...
Release link trunking for IP telephony
Remote subscriber migration
Sequential presentation of long instructions in an...
Sequential presentation of long instructions in an...
Sequential presentation of long instructions in an...
Server with backup capability for distributed IP telephony...
Sponsored information distribution method and apparatus
Sponsored information distribution method and apparatus
Statistical distribution of voice mail messages
Structured voice interaction facilitated by data channel
System and apparatus for IVR port sharing
System and method for communication with an interactive...