[SIPForum-discussion] ASR Analysis for SIP Trunk Group --- Different SIP TG

[Vijay Tiwari]

Hello Rohan

could you please send the  ethereal  trace for call when are u getting 487
request terminating.

this error code generally come when UAC sending the cancel request. there
are many reason for that.

1. your proxy or server not able to process the call
2. UAC wait for longer to get the response of the request
3. etc

if you send the ethereal trace then we are able to better answer for your
error.

Thanks
vijay


On Wed, Jan 20, 2010 at 11:26 AM, SARKER, ROHAN (ROHAN) <
rohan.sarker at alcatel-lucent.com> wrote:

>  For another SIP TG, we found the following results:
>
>
>
> *Failure Codes*
>
> *Count*
>
> *Request Terminated 487*
>
> 373
>
> *Temporarily Unavailable 480*
>
> 271
>
> *Server Internal Error 500*
>
> 31
>
> *Busy Here 486*
>
> 1
>
> *Call/Transaction  481*
>
> 2
>
> *Server Timeout 504*
>
> 0
>
> *Not Found 404*
>
> 6
>
> *Total*
>
> *684*
>
>
>
>
>
> Please suggest what is the problem in the network…
>
>
>
>
>
>
>
>
>
>
>
> Thanks and regards
>
> Rohan Sarker
>
> Deputy Manager
>
> Alcatel-Lucent
>
> DAKC, Navi Mumbai
>
> M:+919320496780
>
> R:+919903051236
>
> O:+912230372803
>
>
>
> *From:* SARKER, ROHAN (ROHAN)
> *Sent:* Wednesday, January 20, 2010 9:49 AM
> *To:* 'discussion at sipforum.org'
> *Cc:* 'rohansarker1 at gmail.com'
> *Subject:* ASR Analysis for SIP Trunk Group
> *Importance:* High
>
>
>
> We were constantly monitoring ASR in our Trunk Groups and found that ASR
> [Answer Seizure Ratio] is extremely small in SIP Trunk Group between ZTE
> ZXC10 GMSC and Huawei MSOFTX3000 MSC.
>
>
>
> We took trace on SIP Trunk Group for 20 mins and analyzed the failure
> codes.
>
>
>
> We found striking results:
>
>
>
> *Failure Codes*
>
> *Count*
>
> *Request Terminated 487*
>
> 244
>
> *Temporarily Unavailable 480*
>
> 37
>
> *Server Internal Error 500*
>
> 38
>
> *Busy Here 486*
>
> 2
>
> *Call/Transaction  481*
>
> 1
>
> *Server Timeout 504*
>
> 12
>
> *Not Found 404*
>
> 1
>
> *Total*
>
> *335*
>
>
>
> Out of 335 failures, 244 failures are from Failure Code 487
>
>
>
> Network Doctors here please help to find out what is the exact problem in
> the network, so that I can fix it and can increase ASR in our SIP TGs….
>
>
>
> Thanks!!!
>
>
>
>
>
>
>
>
>
>
>
> Thanks and regards
>
> Rohan Sarker
>
> Deputy Manager
>
> Alcatel-Lucent
>
> DAKC, Navi Mumbai
>
> M:+919320496780
>
> R:+919903051236
>
> O:+912230372803
>
>
>
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>


-- 
They can because they think they can.
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