[cisco-voip] ISDN sudden disconnect.

[Ted Nugent]

They should be showing in the log, do a show logging


On Fri, Aug 21, 2009 at 1:15 PM, Tanner Ezell <tanner.ezell at gmail.com>wrote:

> Well, this is a 1760 running 12.4(15)T9, how do you check for DSP errors?
>
>
> On Fri, Aug 21, 2009 at 10:12 AM, Ted Nugent <tednugent73 at gmail.com>wrote:
>
>> What version of code are you running, MGCP/DSP errors tend to run rampant
>> and are typically responsible for issues like this. are you showing any dsp
>> errors in the logs? We've had very good success with 12.4(15)T8+ as far as
>> MGCP/DSP stability. Cisco has tried pushing me a few time to higher levels
>> of code and I've almost always gone back to this version because of bugs.
>> Another note that probably has no bearing on the problem but is a good
>> practice you should lock in your calling numbering type/plan to
>> isdn/national and leave called to unknown/unknown, it can cut down on other
>> issues down the road (provider dependent). HTH
>> Ted
>>
>>
>>
>> On Fri, Aug 21, 2009 at 12:08 PM, Tanner Ezell <tanner.ezell at gmail.com>wrote:
>>
>>> I have a MGCP gateway connected via PRI. Whenever a call comes in from
>>> the PRI, the IP Phone rings a single time and then disconnects. On the
>>> gateway, debug isdn q931 reports:
>>> *Mar  1 11:04:27.327: ISDN Se1/0:23 Q931: RX <- SETUP pd = 8  callref =
>>> 0x0008
>>>  Bearer Capability i = 0x8090A2
>>> Standard = CCITT
>>> Transfer Capability = Speech
>>>  Transfer Mode = Circuit
>>> Transfer Rate = 64 kbit/s
>>> Channel ID i = 0xE1808397
>>>  Preferred, Interface 0, Channel 23
>>> Calling Party Number i = 0x00C0, N/A
>>>  Plan:Unknown, Type:Unknown
>>> Called Party Number i = 0xA1, '5032733100'
>>>  Plan:ISDN, Type:National
>>> *Mar  1 11:04:27.343: ISDN Se1/0:23 Q931: TX -> RELEASE_COMP pd = 8
>>>  callref = 0x8008
>>> Cause i = 0x80A9 - Temporary failure
>>>
>>> I'm wondering if this is a dsp issue, as a call into the POTS line works
>>> fine, but sending that call to an IP Phone I get this issue. Any
>>> suggestions?
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>>>
>>
>
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