We have collected the most relevant information on M=Audio Rtp/Savp. Open the URLs, which are collected below, and you will find all the info you are interested in.
UNDERSTANDING SIP TRACES - Cisco Community
https://community.cisco.com/t5/collaboration-voice-and-video/understanding-sip-traces/ta-p/3137704
m=audio 25268 RTP/AVP 18 0 8 101 . This line defines the media attribtes that will be used for the call. Audio: means that this is an Audio call, we can also have m=video in case of a Video call. 25268: Is the dynamic RTP port used for the call. RTP/AVP: Represents the RTP/AVP profile number for each of the profiles listed.
[MS-SDP]: Audio/Video Encryption | Microsoft Docs
https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-sdp/c48d8b88-ac53-4a1b-929b-8c6cbbb3b191
m=audio 49170 RTP/AVP 0 a=encryption:required k=base64:bhdsfsd78f7dssdfssfsd7sdfssa The encryption key is not encrypted. The only transformation of the key is the base64 encoding for transport …
sip - Using SDP media type application with RTP/AVP (m ...
https://stackoverflow.com/questions/48015713/using-sdp-media-type-application-with-rtp-avp-m-application-port-rtp-avp-p
is the media type. Currently defined media are "audio", "video", "text", "application", and "message", although this list may be extended in the future (see Section 8). Application-specific messages can also be sent over RTP, in your case the. m=application …
M-Audio
Acclaimed audio interfaces, studio monitors, and keyboard controllers
Understanding Media In SIP Session Description Protocol ...
https://teraquant.com/understand-media-sip-session-description-protocol/
For example: 16-bit linear encoded stereo audio sampled at 16 kHz using dynamic RTP/AVP payload type 98 for this stream: m=audio 49232 RTP/AVP 98 a=rtpmap:98 L16/16000/2. RFC 3551 specifies an initial set of “payload types”. The table below lists some of the common payload types defined in RFC 3551 and extends that list for easy reference:
Modifying the m and a lines in SDP using SIP Message ...
https://support.sonus.net/display/UXDOC70/Modifying+the+m+and+a+lines+in+SDP+using+SIP+Message+Manipulation
In this particular instance, an incoming SDP used 116 for the DTMF event instead of the standard 101. The SMM configuration below repairs both the media (m line) and the attributes (a line) to modify 116 to 101. m=audio 28048 RTP/AVP 18 116 c=IN IP4 41.87.234.68 a=rtpmap:18 G729/8000 a=rtpmap:116 telephone-event/8000
Solved: SIP/SDP - no codec specifed - Cisco Community
https://community.cisco.com/t5/ip-telephony-and-phones/sip-sdp-no-codec-specifed/td-p/3913990
The numbers at the end of this m line: m=audio 23610 RTP/AVP 8 0 18 97 Those are the codecs. They are RTP payload types, and in preference order. Eg 8=g711alaw, 0=g711ulaw, 18=g729, 97=this one is special, it's actually what they want to Mark RTP-NTP (RFC2833) DTMF relay as.
VoIP Protocols: SIP - Session Description Protocol
http://toncar.cz/Tutorials/VoIP/VoIP_Protocols_SIP_Session_Description_Protocol.html
m= media type, format, and transport address The <port> should always be even (the even port is used by RTP and the next odd port by RTCP). <transport> is usually "RTP/AVP", denoting the RTP protocol with the profile for "Audio and Video Conferences with Minimal Control" (see RFC3551 ).
Now you know M=Audio Rtp/Savp
Now that you know M=Audio Rtp/Savp, we suggest that you familiarize yourself with information on similar questions.
