Hi All, I am doing some robustness testing of my SIP stack/service. During this I have encountered an issue and a bit doubtfull about the action.
Problem description: I injected an INVITE method with a C-style format
string error added in the request line. The message looks like
20080711 16:42:28 INVITE sip%999d:[EMAIL PROTECTED] SIP/2.0
20080711 16:42:28 To: <sip:[EMAIL PROTECTED]:7072>
20080711 16:42:28 From: "+33711428102"
<sip:[EMAIL PROTECTED]:7072>;tag=00000190
20080711 16:42:28 Via: SIP/2.0/UDP
172.21.183.55:7072;branch=z9hG4bK190t1215774748676
20080711 16:42:28 Call-ID: [EMAIL PROTECTED]
20080711 16:42:28 Contact: "+33711428102"
<sip:[EMAIL PROTECTED]>;transport=udp
20080711 16:42:28 Content-Length: 189
20080711 16:42:28 Content-Type: application/sdp
20080711 16:42:28 CSeq: 191 INVITE
20080711 16:42:28 Max-Forwards: 70
20080711 16:42:28
20080711 16:42:28 v=0
20080711 16:42:28 o=+33711428102 1 1 IN IP4 172.21.183.55
20080711 16:42:28 c=IN IP4 172.21.183.55
20080711 16:42:28 t=0 0
20080711 16:42:28 m=audio 49152 RTP/AVP 0
20080711 16:42:28 a=rtpmap:0 PCMA/8000
As per my understaning the call should have failed with 480 response and
time out. But to my astonishment, the call completed successfully with
The discussed diagram is a success call w.r.t to my test bed. Can anyone
please explain this kind of behavior.
Thanks & Regards,
Alcatel-Lucent India Ltd.
Vipul Jain
Senior Engineer
DID: (0124) 4753540 Extn: 3540
Mobile: 09911492132
<<dialog-invite-cancel.png>>
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