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

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Electronic private branch exchange

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

Electronic private branch exchange having an LCR function and a

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

Electronic private branch exchanges

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

Elimination of inoperable service node during call set up

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

Emergency route control for a communication network

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

Emergency services for packet networks

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

End-User communications device with automatic carrier selection

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

Enhanced application telephone network

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

Enhanced call routing in competitive local telephone networks

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Enhanced initiate call attempt

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

Enhanced overflow call processing

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

Enhancing an intelligent network service

Telephonic communications – Plural exchange network or interconnection

Escalatory reactive call routing

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

ETSI intelligent network capability set 1 intelligent...

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

ETSI intelligent network capability set 1 trigger detection...

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection

Exchange and an exchange system in a communication network

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Exchange and telephone exchange system

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

Exchange control method

Telephonic communications – Plural exchange network or interconnection – Interexchange signalling

Exchanging system and method of establishing data call thereof