Switching system control method and apparatus

Switching system for electronic switcher

Switching system reliability

Synchronous digital hierarchy switch system

System access modules for use with a telecommunications...

System access modules for use with a telecommunications...

System and computer program for routing a dedicated number...

System and method for a local number portability cache

System and method for accessing a wireless network from a...

System and method for accessing a wireless network from a...

System and method for activation of an enhanced telecommunicatio

System and method for activation of an enhanced...

System and method for adapting remote access telephony...

System and method for allowing communication between...

System and method for alternative routing of subscriber calls

System and method for an online speaker patch-through

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

System and method for automatically generating a routing plan fo

System and method for branching a telephone call

System and method for call handling