[*] ring tone warble

[John Lange]

Thank you for your feedback Ray.

I'm 90% certain my Asterisk serer is playing ring-tone on outbound calls
to the PSTN via our T1/PRI as well as also passing the audio from the
PSTN at the same time which results in overlapping ring tones.

It does not happen on SIP -> SIP calls, only calls out to the PSTN via
Zap. I tested it on 3 devices, SPA 941, SPA 841, and PAP2 with the same
results.

I'm becoming relatively certain this is a bug in the channel code for
Asterisk.

-- 
John Lange
OpenIT ltd. www.Open-IT.ca (204) 885 0872
VoIP, Web services, Linux Consulting, Server Co-Location

On Thu, 2006-03-09 at 13:06 -0600, Ray Bowler wrote:
> I can't answer it, but can confirm I get the same behaviour at home, although only on my Sipura-841. Budgetone-101,  Zap channels, Linksys PAP2 and Grandstream ATA-386 are unaffected. 
>  
> 
> 
> Ray Bowler
> Winnipeg I.T. Ltd. 
> 1743 Grant Ave. * Winnipeg, Manitoba R3N OM9
> * Landline: 204-480-4090
> * Mobile: 204-228-4578
> * email: rbowler at winnipegit.com <mailto:rbowler at winnipegit.com> 
> 
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> Subject: Asterisk Digest, Vol 15, Issue 7
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>    1. ring tone warble (John Lange)
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> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 08 Mar 2006 12:16:16 -0600
> From: John Lange <john.lange at open-it.ca>
> Subject: [*] ring tone warble
> To: Asterisk <asterisk at muug.mb.ca>
> Message-ID: <1141841776.11022.180.camel at ws50.darkcore.net>
> Content-Type: text/plain
> 
> I've noticed recently that when placing calls through Asterisk I'm
> hearing a strange ringing indication. It has a distinct "warble". In
> fact someone commented on it last night at the meeting when Bill was
> giving his presentation.
> 
> I'm almost positive that the reason is because asterisk is playing the
> ringing audio sound over top the ringing audio which is coming from the
> telco. The two ring indicators interfere with each other slightly
> causing a "warble" in the sound.
> 
> Can anyone confirm, deny, or refute this?
> 
> --
> John Lange
> OpenIT ltd. www.Open-IT.ca (204) 885 0872
> VoIP, Web services, Linux Consulting, Server Co-Location
> 
> 
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