SDP offer/answer incomplete,end the session

[OWFyMST]

Hi,for my code,when I recive a INVITE,I will call back a 200.After the ACK,my project send a BYE.In the output infomation,I see the "SDP offer/answer incomplete,end the session" .Why?

10:00:10.258 sip_endpoint.c Processing incoming message: Request msg INVITE/cseq=2 (rdata0xf2a8b534)
10:00:10.259 sip_intf.cpp .RX 757 bytes Request msg INVITE/cseq=2 (rdata0xf2a8b534) from UDP 52.23.0.28:5061:
INVITE sip:[email protected]:5070 SIP/2.0
Via: SIP/2.0/UDP 52.23.0.28:5061;branch=z9hG4bKfa326ac6e4226ac67e326ac68
Call-ID: [email protected]
From: sip:[email protected]:5061;tag=2573d8723b63d872a173d8725173d872
To: sip:[email protected]:5070
CSeq: 2 INVITE
Contact: sip:[email protected]:5061
User-Agent: IMOS/V3
Subject: 52038200001310005262:0058104e71b9104e781,52038200002000000066:03dc87fb123d87fb1b9
Max-Forwards: 70
Content-Length: 176
Content-Type: application/sdp

v=0
o=52038200002000000066 0 0 IN IP4 52.23.19.238
s=Play
c=IN IP4 52.23.19.238
t=0 0
m=video 40714 RTP/AVP 96
i=primary
a=recvonly
a=rtpmap:96 PS/90000
y=0382007372

--end msg--

_________________1

_________________2

_________________3

_________________4

!!!!!!!!!!!status parse OK
!!!!!!!!!!!status validate2 OK

_________________5

_________________6

_________________7

!!!!!!!!!!!!!!!!!!! 11111111111

!!!!!!!!!!!!!!!!!!! 2222222222

Create RealInfo Session!!!!!
ConnectAddr Succeed:server_ip = 192.168.0.8, remote_rtp_port = 40714, remote_ip = 52.23.19.238, remote_rtp_port = 40714
, challelID = 3301061000005262￡? streamType = 1, user = 148613592
success RealPlay

Success Play --> playNumber = 1
sdk_sess Number = 1
10:00:10.263 tsx0xf2a99624 ..Transaction created for Request msg INVITE/cseq=2 (rdata0xf2a8b534)
10:00:10.263 tsx0xf2a99624 .Incoming Request msg INVITE/cseq=2 (rdata0xf2a8b534) in state Null
10:00:10.263 tsx0xf2a99624 ..State changed from Null to Trying, event=RX_MSG
10:00:10.263 dlg0xf2a98e1c ...Transaction tsx0xf2a99624 state changed to Trying
10:00:10.263 dlg0xf2a98e1c .UAS dialog created
10:00:10.263 dlg0xf2a98e1c .Module mod-invite added as dialog usage, data=0xf2a05cc8
10:00:10.264 dlg0xf2a98e1c ..Session count inc to 2 by mod-invite
10:00:10.264 inv0xf2a98e1c .UAS invite session created for dialog dlg0xf2a98e1c
10:00:10.264 endpoint ..Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0) created
10:00:10.264 dlg0xf2a98e1c ..Initial answer Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0)
10:00:10.264 inv0xf2a98e1c ..Sending Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0)
10:00:10.264 dlg0xf2a98e1c ...Sending Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0)
10:00:10.264 tsx0xf2a99624 ...Sending Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0) in state Trying
10:00:10.265 sip_resolve.c ....Target '52.23.0.28:5061' type=UDP resolved to '52.23.0.28:5061' type=UDP (UDP transport)
10:00:10.265 sip_intf.cpp ....TX 688 bytes Response msg 200/INVITE/cseq=2 (tdta0xf2a9a1d0) to UDP 52.23.0.28:5061:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 52.23.0.28:5061;received=52.23.0.28;branch=z9hG4bKfa326ac6e4226ac67e326ac68
Call-ID: [email protected]
From: sip:[email protected];tag=2573d8723b63d872a173d8725173d872
To: sip:[email protected];tag=r9mfhIPRI.3xjn4w2X.ui8ap-xfG3Yiv
CSeq: 2 INVITE
Contact: sip:[email protected]:5070
Allow: INVITE, ACK, BYE, CANCEL, UPDATE, PRACK
Supported: 100rel
Content-Type: application/sdp
Content-Length: 163

v=0
o=52038200001310005262 0 0 IN IP4 192.168.0.8
s=Play
c=IN IP4 192.168.0.8
t=0 0
m=video 40714 RTP/AVP 96
a=sendonly
a=rtpmap:96 PS/90000
y=0382007372

--end msg--
10:00:10.265 tsx0xf2a99624 ....State changed from Trying to Completed, event=TX_MSG
10:00:10.265 dlg0xf2a98e1c .....Transaction tsx0xf2a99624 state changed to Completed
10:00:10.266 sip_intf.cpp ......Session( From: sip:[email protected];tag=r9mfhIPRI.3xjn4w2X.ui8ap-xfG3Yiv <-> To: sip:[email protected];tag=2573d8723b63d872a173d8725173d872, addr: 0xf74e300c ): state changed to CONNECTING

-----133333-------------------------

-----233333-------------------------
10:00:10.269 sip_endpoint.c Processing incoming message: Request msg ACK/cseq=2 (rdata0xf2a8b534)
10:00:10.269 sip_intf.cpp .RX 487 bytes Request msg ACK/cseq=2 (rdata0xf2a8b534) from UDP 52.23.0.28:5061:
ACK sip:[email protected]:5070 SIP/2.0
Via: SIP/2.0/UDP 52.23.0.28:5061;branch=z9hG4bKfa326ac6e4226ac67e326ac68
Call-ID: [email protected]
From: sip:[email protected]:5061;tag=2573d8723b63d872a173d8725173d872
To: sip:[email protected]:5070;tag=r9mfhIPRI.3xjn4w2X.ui8ap-xfG3Yiv
CSeq: 2 ACK
Contact: sip:[email protected]:5061
User-Agent: IMOS/V3
Max-Forwards: 70
Content-Length: 0

--end msg--
10:00:10.270 tsx0xf2a99624 .Incoming Request msg ACK/cseq=2 (rdata0xf2a8b534) in state Completed
10:00:10.270 tsx0xf2a99624 ..State changed from Completed to Confirmed, event=RX_MSG
10:00:10.270 dlg0xf2a98e1c ...Transaction tsx0xf2a99624 state changed to Confirmed
10:00:10.270 inv0xf2a98e1c ....SDP offer/answer incomplete, ending the session
10:00:10.270 endpoint .....Request msg BYE/cseq=16636 (tdta0xf2a9c180) created.
10:00:10.270 inv0xf2a98e1c .....Sending Request msg BYE/cseq=16636 (tdta0xf2a9c180)
10:00:10.271 dlg0xf2a98e1c ......Sending Request msg BYE/cseq=16636 (tdta0xf2a9c180)
10:00:10.271 tsx0xf2a9d1ec .......Transaction created for Request msg BYE/cseq=16635 (tdta0xf2a9c180)
10:00:10.271 tsx0xf2a9d1ec ......Sending Request msg BYE/cseq=16635 (tdta0xf2a9c180) in state Null
10:00:10.271 sip_resolve.c .......Target '52.23.0.28:5061' type=Unspecified resolved to '52.23.0.28:5061' type=UDP (UDP transport)
10:00:10.271 sip_intf.cpp .......TX 423 bytes Request msg BYE/cseq=16635 (tdta0xf2a9c180) to UDP 52.23.0.28:5061:
BYE sip:[email protected]:5061 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.8:5070;rport;branch=z9hG4bKPjyolIqkLXy36VY5oePN6tDRceo.aW5tcC
Max-Forwards: 70
From: sip:[email protected];tag=r9mfhIPRI.3xjn4w2X.ui8ap-xfG3Yiv
To: sip:[email protected];tag=2573d8723b63d872a173d8725173d872
Call-ID: [email protected]
CSeq: 16635 BYE
Content-Length: 0