videophone service

Videophone Service in Public Switched Telephone Network

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Videophone Service in Public Switched Telephone Network (PSTN)  Introduction Recommendation F.723 contains the description and network specific service requirements for videophone service in Public Switched Telephone Network (PSTN). The substance of this Recommendation complements the main body of the Supplement to Recommendation F.720, which deals with network independent service requirements for respective Low Bit Rate […]