Call control instance changeover

Call control instance changeover

Mobile roaming and authentication

Method for handling a call, software product, and device

Method and call manager node for handling group calls

Communication system

Security techniques for reconnecting to a conference session using a computing device

Originating a voice call from a selected number using a temporary routing number

Method for handling a call, software product, and device

Security techniques for reconnecting to a conference session using a computing device

Automatic determination of caller identification data in outgoing calls

Temporary user associations based on call state

Centralized routing in hybrid networks

Methods and systems for controlling setup of calls through communication systems

Phone number verification

Telephone number sharing configuration

SYSTEM AND METHOD FOR PROVIDING A DIAL TONE AND A RING TONE

Cross-media voice mail notification and delivery

Method and apparatus for random access of voice mail messages

METHOD TO MAINTAIN END-TO-END ENCRYPTED CALLS THROUGH A TETRA TMO-DMO GATEWAY WHEN USING SUPER GROUPS

SYSTEM AND METHOD FOR ANONYMOUS RECEPTION OF TELEPHONE CALLS

Familiarization augmentation system and technology (FAST) dialer

Cross-media voice mail notification and delivery

Apparatuses and methods for presenting caller identities for communications originating and terminating in different communication domains

Automatic virtual phone number pool management

Automatic virtual phone number pool management

Automatic virtual phone number pool management