我正在使用Node.js和Kirm/Sip模塊向Twilio SIP中繼發送SIP請求,我試圖在收到'180 Ringing'響應後取消呼叫。SIP CANCEL請求永遠不會獲得200取消響應
的問題是,[取消] SIP請求被髮送,但服務器從未與狀態「200取消」像它應該,而是用TCP [ACK]回覆和呼叫保持振鈴回覆..
取消請求是Invite請求的副本,但更改了Method和CSec方法。
INVITE請求:
INVITE sip:[email protected] SIP/2.0
From: <sip:[email protected]>;tag=168502
To: <sip:[email protected]>
Call-ID: 284466
CSeq: 969240 INVITE
Content-Type: application/sdp
Contact: <sip:[email protected]>
Via: SIP/2.0/TCP 192.168.61.4:61244;branch=z9hG4bK847573
Content-Length: 363
Proxy-Authorization: Digest realm="sip.twilio.com",username="test",nonce="XXXX",uri="sip:[email protected]",nc=00000001,cnonce="XXXXXXX",qop=auth,opaque="XXXXXXX",response="XXXXXXX"
v=0
o=- 3700480907 3700480907 IN IP4 192.168.61.4
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 4012 RTP/AVP 123 8 0 101
c=IN IP4 192.168.61.4
b=TIAS:64000
a=rtcp:4013 IN IP4 192.168.61.4
a=sendrecv
a=rtpmap:123 opus/48000/2
a=fmtp:123 maxplaybackrate=16000
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
CANCEL請求:
CANCEL sip:[email protected] SIP/2.0
CSeq: 969240 CANCEL
Call-ID: 284466
From: <sip:[email protected]>;tag=168502
To: <sip:[email protected]>
Via: SIP/2.0/TCP 192.168.61.4:61244;branch=z9hG4bK847573
Content-Length: 0
所以任何想法?
謝謝
您的取消看起來非常有效。這是實際的消息。我假設INVITE中沒有路由頭。如果它實際上是INVITE,那麼也複製到CANCEL。 – Sudhansu