ED-137C/2-1 - Interoperability Standard for VOIP ATM Components - Volume 2 Telephone - Addendum 1We are pleased to announce the publication of ED-137C/2-1|Interoperability Standard for VOIP ATM Components - Volume 2 Telephone - Addendum 1 Legacy Telephone Interworking ATS-R2 ATS-No.5 and ATS-QSIG.
The scope of ED-137 is to define the rules for VoIP implementations to support ATM communications and their interoperability. ED-137 is composed of multiple Volumes, each of which is dedicated to a specific application. Volume 2 proposes a profile standard for the use of SIP to establish, terminate and modify speech media sessions of the Ground Telephone Service in an Air Traffic Services Ground Voice Network (AGVN). Volume 2 is composed of a core document describing the basic requirements and a number of addenda dedicated to specifc functionalities. Addendum 1 describes the Legacy Interworking of telephone systems applying ATS-R2, ATS-No.5 And ATS-QSIG.
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