Method and apparatus for establishing an ISDN call between parti

Method and apparatus for extending PBX features via the...

Method and apparatus for facilitating remote communications acce

Method and apparatus for handling calls requiring the...

Method and apparatus for implementing a plurality of...

Method and apparatus for integrated multimedia call control

Method and apparatus for IP network call delivery

Method and apparatus for prioritizing voice and data in a...

Method and apparatus for processing a sequence of calls

Method and apparatus for providing a specialized resource...

Method and apparatus for providing called party information...

Method and apparatus for providing calling party control

Method and apparatus for providing combined communication servic

Method and apparatus for providing control and input sensing...

Method and apparatus for providing customer premise...

Method and apparatus for providing local call treatment...

Method and apparatus for providing telecommunications services

Method and apparatus for providing virtual private network...

Method and apparatus for reconfiguring network routes

Method and apparatus for resolving an entity identifier into...