System and method for allowing communication between...

System and method for announcing a message through a private...

System and method for communicating transaction capabilities app

System and method for communicating with and controlling...

System and method for invocation of a check of a...

System and method for managing telephony network resources

System and method for providing a busy signal to a communication

System and method for providing an enhanced audio quality...

System and method for providing competitive access telephone ser

System and method for providing telephony services to remote...

System and method for providing telephony services to remote...

System and method for providing telephony services to remote...

System and method for providing telephony services to remote...

System and method for redirecting control of in-band signaling

System and method for redirecting control of in-band signaling

System and method for redirecting control of in-band signaling

System and method for telephony call control

System and method for unifying the implementation and...

System and method to minimize glare in interoffice trunk allocat

System for accessing different resources having the same...