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

[Vijay Tiwari]

Let us know if you have any ohter question.

On Fri, Jan 22, 2010 at 10:19 AM, SARKER, ROHAN (ROHAN) <
rohan.sarker at alcatel-lucent.com> wrote:

>  Thanks for your reply. I have now some understanding. I can’t provide Eth
> Traces. I have only MSC traces that too is very very confidential.
>
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> Regards
>
> Rohan Sarker
>
>
>
> *From:* Vijay Tiwari [mailto:vijay11tiwari at gmail.com]
> *Sent:* Thursday, January 21, 2010 8:46 PM
> *To:* SARKER, ROHAN (ROHAN)
> *Cc:* discussion at sipforum.org; rohansarker1 at gmail.com
> *Subject:* Re: [SIPForum-discussion] ASR Analysis for SIP Trunk Group ---
> Different SIP TG
>
>
>
> 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
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> 2. UAC wait for longer to get the response of the request
>
> 3. etc
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> if you send the ethereal trace then we are able to better answer for your
> error.
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>
> 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
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> *Call/Transaction  481*
>
> 2
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> *Server Timeout 504*
>
> 0
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> *Not Found 404*
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> 6
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> *Total*
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> *684*
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> Please suggest what is the problem in the network…
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> 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!!!
>
>
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>
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>
>
>
>
> Thanks and regards
>
> Rohan Sarker
>
> Deputy Manager
>
> Alcatel-Lucent
>
> DAKC, Navi Mumbai
>
> M:+919320496780
>
> R:+919903051236
>
> O:+912230372803
>
>
>
>
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>



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