[SIPForum-discussion] problem while using sjphone as a test tool

[MEENA SELVAM]

Hi, 

I am testing the sip signalling software which I
wrote. I send the following INVITE message from a
Solaris machine application program to the SJPhone
running on a windows machine through udp socket 

Message INVITE sent from: 
SOLARIS : 155.226.145.110 port 5060 - through a udp
socket connection 
to WINDOWS: 155.226.145.85:5060 

The message is repeated with exponential backoff : .5
sec, 1 sec, 2 sec, 4sec (INVITE was sent 5 times) 

Results: 
Ethreal sees these messages (ethreal runs at WINDOWS:
155.226.145.85) 
ie decodes as INVITE messages with proper header and
sdp attributes. 

netstat -a shows that the socket is connected at 5060 

INVITE sip:155.226.145.85 SIP/2.0 
Via: SIP/2.0/UDP
155.226.145.110:5060;rport;branch=z9hG4bkc0a8ea4d0000001a43e0086100001abei00000007

From:
unknown<sip:155.226.145.110:5060>;tag=220985050731149 
To: <sip:155.226.145.85> 
Contact: <sip:155.226.145.110:5060> 
Call-ID:
EA916708-CE35-4D69-BB17-FD74CCD269DD at 155.226.145.110 
CSeq: 1 INVITE 
Max-Forwards: 70 
Content-Type: application/sdp 
User-Agent: SJphone/1.60.289a (SJ Labs) 
Content-Length: 341 

v=0 
o=3347744481 3347744481 IN IP4 155.226.145.110 
s=SJphone 
c=IN IP4 155.226.145.110 
t=0 0 
a=direction:active 
m=audio 49154 RTP/AVP 3 97 98 8 0 101 
a=rtpmap:3 GSM/8000 
a=rtpmap:97 iLBC/8000 
a=rtpmap:98 iLBC/8000 
a=fmtp:98 mode=20 
a=rtpmap:8 PCMU/8000 
a=rtpmap:0 PCMU/8000 
a=rtpmap:101 telephone-event/8000 
a=fmtp:101 0-11,16 

Other Observation: 
The SJ phone settings is auto accept calls , and
discover addresses turned OFF in STUN settings. 

The call goes through from a SJ phone running on
WINDOWS: 155.226.145.84 to a SJ phone running on
WINDOWS: 155.226.145.85 with the above settings on the
SJphones. The ethereal capture for this successful
call, indicated that there were 5 INVITES sent, thats
why the 5 INVITES were sent from the SOLARIS machine
too. 

CAN ANYONE FIGURE OUT what could be wrong and suggest
me some steps to further debug the issue? 

Meena

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com