[SIPForum-discussion] strange behavior

[Aniella Juverdeanu]

Isn't this OPTIONS just enabled between the two SIP nodes for keep alive? I think they repeat at a regular interval - Wireshark just captures them - this is normal practice if you have an alternate IP address for the destination. Please check call-ID to see if OPTIONS are part of the initial call.

Thanks,
Aniella

From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Vinicio Callejas
Sent: February 14, 2014 09:53 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] strange behavior

Dear SIP-Forum  community,
I need  their valuable help in my next question in the following trace:


|Time     | 192.168.222.1                          |
|         |                   | 172.16.0.8     |
|0.000000 |         INVITE SDP (g729 telephone-eventRTPType-101)          |SIP From: <sip:026515615981190 at 200.30.79.27<mailto:sip%3A026515615981190 at 200.30.79.27>;user=phone To:<sip:76750257231163 at 192.168.222.1<mailto:sip%3A76750257231163 at 192.168.222.1>;user=phone
|         |(5062)   ------------------>  (5060)   |
|0.001112 |         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|0.283508 |         183 Progress                  |SIP Status
|         |(5062)   <------------------  (5060)   |
|2.153476 |         183 Progress SDP (g729 telephone-eventRTPType-...)          |SIP Status
|         |(5062)   <------------------  (5060)   |
|3.072989 |         180 Ringing                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|9.686369 |         200 OK SDP (g729 telephone-eventRTPType-101)          |SIP Status
|         |(5062)   <------------------  (5060)   |
|9.951822 |         ACK       |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|9.951834 |         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|10.152405|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|10.172826|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|369.954905|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|370.156250|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|370.182409|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|730.015937|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|730.216594|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|730.234521|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|1089.969163|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|1090.173824|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|1090.183164|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|1449.971924|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|1450.172387|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|1450.203957|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|1809.984631|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|1810.188181|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|1810.204932|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|2169.987896|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|2170.188157|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|2170.206157|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|2529.991223|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|2530.192339|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|2530.230736|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|2889.994229|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|2890.196896|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|2890.216868|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|3250.006942|         OPTIONS   |                   |SIP Request
|         |(5062)   ------------------>  (5060)   |
|3250.209311|         100 Trying|                   |SIP Status
|         |(5062)   <------------------  (5060)   |
|3250.236541|         200 Ok SDP ()                 |SIP Status
|         |(5062)   <------------------  (5060)   |
|3609.689094|         BYE       |                   |SIP Request
|         |(5062)   <------------------  (5060)   |
|3609.910220|         200 OK    |                   |SIP Status
|         |(5062)   ------------------>  (5060)   |



My question is this because after ACK there are so many options that are generated.
Could someone explain the reason for this situation, if there are problems in the codec or a bad configuration?

Best Regards,
Vinicio

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