[asterisk-users] ISDN Cause codes

Robert Boardman robb at boardman.me.uk
Fri Nov 21 14:06:47 CST 2008


Thanks for the reply

Could you be a little more specific?

Thanks
Robb

Martin Smith wrote:
> Hi Robert,
>
> I'd suggest tweaking the Dial() arguments so that you (1) allow early
> audio, (2) don't force it play ringing to the calling party, and (3)
> modify any other options to be as relaxed as possible. if you make those
> changes, you'll start hearing the operator message recordings and those
> are sometimes easier to reference against the cause codes.
>
> Cheers,
>
>
> Martin Smith, Systems Developer
> martins at bebr.ufl.edu
> Bureau of Economic and Business Research
> University of Florida
> (352) 392-0171 Ext. 221 
>
>  
>
>   
>> -----Original Message-----
>> From: asterisk-users-bounces at lists.digium.com 
>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
>> Robert Boardman
>> Sent: Thursday, November 20, 2008 5:56 PM
>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>> Subject: [asterisk-users] ISDN Cause codes
>>
>> Hi All
>>
>> Just been looking at stats for one of my sites, and I'm 
>> conserned about 
>> the number of error cause codes being returned from the telco
>>
>> for example
>>
>> 12000 calls processed
>>
>> 131 are cause code 31* normal. unspecified.*
>>
>> 139 are cause code 28 * invalid number format (address incomplete).*
>>
>> 112 are cause code 1 *Unallocated (unassigned) number.
>>
>> *this adds up to about 3% of calls not completing.
>>
>> there are various other codes including 17 busy 34 channel 
>> unavaliable 
>> and 44 requested channel unavaliable, which add up to another 1%.*
>> *
>> the telco says there is no problem with the line, I'm trying to 
>> understand what the problem could be
>>
>> now  alot of calls complete OK so I don't think is my configs
>>
>> Any advice would be appriciated
>>
>> Versions
>> asterisk 1.4.21.1
>> zaptel 1.4.12.1
>>
>>
>> Robb
>>
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