What do we call this

Hello guys,

Can you tell me what do we call this below? It is from SIPp. Other one is header file and below one ???

v=0 o=UserA 2890844526 2890844526 IN IP4 here.com s=Session SDP c=IN IP4 pc33.atlanta.com t=0 0 m=audio 49172 RTP/AVP 0 a=rtpmap:0 PCMU/8000


See RFC 4566, or just search on the media type.

What about Payload format? Is there anyone here know about SIPp very well? I have some questions to ask but not sure if anyone here can help.

answers.com/topic/payload#Co … opedia_ans definition (1) (of payload).