Method of telephone signalling via data link

Method of universal communication and devices thereof

Method of using carrier information for enhanced call data proce

Method of volume screening signalling messages in a telecommunic

Method to provide an operator selection service as well as a...

Method, apparatus and computer program product for...

Method, exchange and telecommunications network for...

Method, system, and apparatus for debugging a live telephone...

Methods and apparatus for accomplishing call-state...

Methods and apparatus for controlling processing entities,...

Methods and apparatus for implementing customized ringback

Methods and apparatus for local number portability in...

Methods and apparatus for performing diagnostics and...

Methods and apparatus for transferring from a PSTN to a VOIP...

Methods and interfaces for probing and understanding...

Methods and systems for changing a communication quality of...

Methods and systems for collapsing signal transfer point...

Methods and systems for connecting multiple telephone lines betw

Methods and systems for default routing in a signaling network

Methods and systems for default routing in a signaling network