Videophone Service in the Public Switched Telephone Network (PSTN) - Series F: Non-Telephone Telecommunication Services; Audiovisual Services Study Group 1
ITU-T Recommendation G.723.1-1996ITU-T Recommendation H.223-1996ITU-T Recommendation H.245-1996ITU-T Recommendation H.263-1996ITU-T Recommendation H.281-1994ITU-T Recommendation H.324-1996ITU-T Recommendation T. 120-1996ITU-T Recommendation T. 126-
适用范围
This Recommendation contains the descripti on and network specific service requirements for videophone services offered in the Public Switched Telephone Network (PSTN). The substance of this Recommendation complements the main body of the Supplement to Re