[SIPForum-discussion] Loop detected

[Keyur Amin]

You do not have any branch value in Via header. 
 
Thanks,
Keyur Amin

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On Wednesday, November 20, 2013 12:05 PM, Raghav Goud <raghavgoud.g at gmail.com> wrote:
 
Hi all,
  I am newbie to SIP protocol.
  Here are the Steps i followed to understand call flow of SIP
1.  I Registered an SIP ID with iptel.org. 
2. I downloaded live555 source code which having sip client.
  when try to communicate with my SIP ID using live555 sip client am getting
 LOOP DETECTED error.

 Here is log of call flow :
Sending request: INVITE sip:raghav.goud12 at iptel.org SIP/2.0
From: raghav.goud12 <sip:raghav.goud12 at 192.168.2.232>;tag=612715021
Via: SIP/2.0/UDP 192.168.2.232:35728
Max-Forwards: 70
To: sip:raghav.goud12 at iptel.org
Contact: sip:raghav.goud12 at 192.168.2.232:35728
Call-ID: 2041292707 at 192.168.2.232
CSeq: 1 INVITE
Content-Type: application/sdp
User-Agent: playSIP (LIVE555 Streaming Media v2013.10.25)
Content-Length: 118

v=0
o=- 2041292707 0 IN IP4 192.168.2.232
s=playSIP session
c=IN IP4 192.168.2.232
t=0 0
m=audio 8000 RTP/AVP 0

Received INVITE response: SIP/2.0482 Loop Detected
From: raghav.goud12 <sip:raghav.goud12 at 192.168.2.232>;tag=612715021
Via: SIP/2.0/UDP 192.168.2.232:35728;received=27.34.241.138
To: sip:raghav.goud12 at iptel.org;tag=08EEDDD8-528B2827000D7339-AFDFD700
Call-ID: 2041292707 at 192.168.2.232
CSeq: 1 INVITE
Content-Length: 0


Failed to get a SDP description for the URL "sip:raghav.goud12 at iptel.org": (NULL) 

Can some body Tell me what is error here?

Thanks,
Raghav
 


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