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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions and abbreviations
  • 4 Introduction
  • 5 Void
  • 6 Network Characteristics
  • 7 Interworking classifications
  • 8 Compatibility and subscription checking
  • 9 Interworking to PSTN
  • 10 Interworking to the ISDN
  • 11 Interworking between A/Gb mode MSC and Iu mode MSC
  • 11a Transport Protocols
  • 12 Frame Synchronization
  • 13 Call Clearing
  • 14 The A-TRAU Framing Protocols
  • 15 RTP Payload Type Negotiation for Data Calls within a SIP-I based CS Core Network
    • 15.1 RTP payload type negotiation at access side of IWF
    • 15.2 RTP payload type negotiation at network side of IWF
      • 15.2 RTP payload type negotiation at network side of IWF
    • C.1 Scope
    • C.2 RTP payload Type definition
    • C.3 Describing the RTP payload Type in SDP
    • C.4 SDP Offer-Answer considerations
    • C.5 SDP Example
    • D.1 Introduction
    • D.2 IANA Registration information

C.1 Scope

29.0073GPPGeneral requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This Annex defines the "vnd.3gpp.clearmode" RTP payload type which shall be used within SDP (see IETF RFC 4566 [98]) to denote the 3G-324.M and the 3G-324.M2 "dummy codecs" defined to indicate a multimedia call for SCUDIF in 3GPP TS 23.172 [83]. Procedures for the codec negotiation applying these codecs are defined in 3GPP TS 23.172 [83] and in Clause 15.2