[Asterisk-Dev] double ringing tone on 1.2.1 bug or misconfiguration ?

[Mark Hulber]

I thought this was a known IAX problem.  I get the same thing and this 
is not isolated to 1.2.1.

MARK.

Simone Cittadini wrote:
> there's a thread on users's ml started by myself "double ringing tone 
> on asterisk 1.2",
> seems I'm not the only one  having the same problem with 1.2.1
>
> Given that it seems a problem that goes deeper than misconfiguration 
> what other logs/modules/tests should I investigate to understand 
> what's happening ?
>
>
>
> ----------- users ml relevant posts
>
> While I wait for the call to be answered I hear a "double ringing 
> tone", like :
>
> expected tone :
> tuuu         tuuu         tuuu         tuuu
>
> what I hear :
> tuuu tuuu   tuuu tuuu   tuuu tuuu   tuuu tuuu
>
> the second "tuuu" I think is generated somewhere and not "true", since 
> it sounds slightly different and the lambda between the first and the 
> second is always different.
>
> the problem appears no matter where I terminate the call (IAX or Zap), 
> and I don't have that problem on a 1.0.7 connected to the same PRI 
> lines and IAX servers , what I have to check ? looked in confif files 
> but appears to be the same (indications, modules loaded, iax, zapata, 
> the dial in extensions is the same)
>
> -- 
>
> i suffer the same double ring tone on our 1.2.1 box. 1.0.9 box ha no such
> problem. i used the r to solve it but this is not a good solution though.
>
> -- 
>
>
>
> Actually, I'm not complaining, but I've experienced a similar problem. 
> For me it only happens with IAX calls, and from there only IAX calls 
> with a particular ITSP.
>
> But his description rings very true: there are two rings per time that 
> the far-end phone is ringing, and just like he said, one of them 
> sounds genuine and the other sounds like perhaps my provider is adding 
> it to the audio coming my way.
>
> The dinger is that it doesn't happen on all calls; it's more or less 
> random, but frequent.
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