LandOfFree - US Patents - Listing for Telephonic communications,Plural exchange network or interconnection

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

System for connecting public network subscriber and private netw

Telephonic communications – Plural exchange network or interconnection – Connection call model

System for converting a No. 5 crossbar telephone switching centr

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

System for converting a routing address within a telecommunicati

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for coupling the public telephone network to the...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for coupling the public telephone network to the...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

System for elminating glare in virtual private line circuits

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for establishing a permanent internet connection via...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for executing advanced interactive voice response...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for handling large blocks of special number calls in...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for handling large blocks of special number calls in...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for maintaining PBX license key information in the...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System for managing office data in an exchange,...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

System for service control point routing

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System, method and apparatus for least cost automatic...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System, method and computer program product for achieving...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

System, method and computer program product for achieving...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Systems and method for providing network element management func

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

Systems and methods for integrating PSTN and IP application...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing

Systems and methods for managing a numbering plan area split...