I've changed the trunk in sipx to only allow PCMU/PCMA and also changed
XLite to only support the same. Unfortunately the call is still being
dropped. I also spoke to my ISP who informed me that because the
max-forwards is a system wide parameter, it cannot be changed. Looks like I
need a new ITSP! Thanks again for your help guys.

On Thu, Nov 10, 2011 at 4:59 AM, Tony Graziano <[email protected]
> wrote:

> just wondering if each codec offer was a forward (branch) and each was
> being answered/counted it would help to shut some of the codecs off so it
> reduced the hop count.
>
> I think the ultimate answer is to ask the trunk provider to increase
> theirs.  10 is really not enough, though they might be really targeting a
> residential/soho market and their idea of a trunk is really a one stop
> connection to the ua/answering machine, so they assume (and might be right
> in that context) that 10 is enough.
>
>
> On Wed, Nov 9, 2011 at 11:52 AM, Joegen Baclor <[email protected]> wrote:
>
>> **
>> Tony,
>> I dont think codec matters in the OP's case. Although i sure hope it
>> does.  codec issues is something that sipx excels in because of it being a
>> proxy.  Unfortunately this is not one of those.  RFC war?  nah ---
>> joegen
>>
>>
>>
>> On 11/09/2011 11:34 PM, Tony Graziano wrote:
>>
>> would it matter how many codex you have enabled in your client/ua?
>> On Nov 9, 2011 10:01 AM, "Joegen Baclor" <[email protected]> wrote:
>>
>>>  Perhaps this would help.
>>> http://wiki.sipfoundry.org/display/sipXecs/Call+Redirectors
>>>
>>> Each redirect is a hop.
>>>
>>> On 11/09/2011 08:14 PM, Paul Kramer wrote:
>>>
>>> Thank you both for your kind input. I'm very impressed at the promptness
>>> of replies on the list so far!
>>>
>>>  I've created a new issue at http://track.sipfoundry.org/browse/XX-9954,
>>> however this is the first issue I have created so there could be problems
>>> with it.
>>>
>>>  Apart from the "Too many hops" error message in the sipxproxy log, was
>>> there any other indication that the problem could be related to
>>> max-forwards? In the pcap file I can see the original invite from the ITSP
>>> contains a max-forwards value of 10 which i'm guessing also helped in
>>> diagnosing the problem.
>>>
>>>  Do you know if there's a resource available describinig the flow of
>>> data between each SipXecs component? I'm looking at the merged.xml file in
>>> sipviewer and must say i'm quite confused.
>>>
>>>  Thanks again for your help.
>>>
>>>  Paul
>>>
>>> On Wed, Nov 9, 2011 at 9:27 PM, Joegen Baclor <[email protected]> wrote:
>>>
>>>>  Max-Forwards strikes again.   Your ITSP is sending a Max-Forwards of
>>>> 10 which is consumed by the hops required to eventually land the call to
>>>> the IVR.   The reason why it does not show when not using aliases is
>>>> because it takes a lesser amount of hop and does not consume the max
>>>> forwards.   I have discussed this with the developers and we agreed that we
>>>> can introduce a reset-max-forwards=value  parameter in the ITSP account
>>>> setting.   This would allow calls coming from these ITSPs with very low max
>>>> forwards  to be rewritten.
>>>>
>>>>
>>>> Please create a tracker for this in jira and attach the logs oisted
>>>> here.
>>>>
>>>>
>>>>
>>>> On 11/09/2011 04:19 PM, Paul Kramer wrote:
>>>>
>>>>  Ok here is the log with enhanced debugging. I had a quick look at the
>>>> voicemail dialplan and everything seemed to be in order.
>>>>
>>>> On Tue, Nov 8, 2011 at 1:18 PM, Paul Kramer <[email protected]>wrote:
>>>>
>>>>> Hi all, this is my first post on the forums and I'm a little wet
>>>>> behind the ears - might have to be a bit patient with me [image:
>>>>> Laughing]
>>>>>
>>>>> I'm having an issue with calls made from the PSTN coming in through
>>>>> the Internode (Australian) ITSP trunk I have setup in sipxecs. When I
>>>>> forward calls to an extension via System -> Servers -> *server* -> Sip
>>>>> Trunking -> Incoming Calls Destination, calls forward to VM successfully.
>>>>> However when I apply my ITSP DID to any extension, the extension rings and
>>>>> a call can be established but when the call is forwarded to VM, it is
>>>>> dropped at the far end. VM forwarding also works as expected during
>>>>> internal calls.
>>>>>
>>>>> Attached are two sets of logs and traces: one with aliases configured
>>>>> and one with calls passed straight through to an extension.
>>>>>
>>>>> Thanks in advance for your help.
>>>>>
>>>>> Paul
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> sipx-users mailing [email protected]
>>>> List Archive: http://list.sipfoundry.org/archive/sipx-users/
>>>>
>>>>
>>>>
>>>
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>>>
>>>
>>>
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>>>
>>
>> _______________________________________________
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>>
>>
>>
>
>
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