[Asterisk-Users] Voip Provider

[Martin Joseph]

On Jan 28, 2006, at 6:50 AM, Mark Adams wrote:

>
>
> Hi Everyone,
>
> I know this may be off subject but I am not sure who to ask. I am 
> currently looking for voip termination that is closest to replicating 
> U.S. pots service. I run I.V.R. systems and I want to point Sipura 
> 2100’s to a voip terminator and have the DTMF tones properly detected. 
> All that I need is outbound service and the problem I run into now is 
> that when the called party presses a key on the phone it does not play 
> it back properly to my system. I have tried to dial through voxee and 
> plain voip and they both have the same problem. Im not sure if this is 
> an asterisk issue or what. When I dial through packet 8, aptella or 
> vonage everything works fine. I think my problems are because I am 
> going through their asterisk servers. If anyone can help I would 
> appreciate it, there is a potential for me using thousands of minutes 
> per day if I could only find compatible service.
>
> I use the generic term U.S. Pots service because my dialers work 
> perfectly on normal analog phone lines. I’ve been looking for service 
> for 2 months and I haven’t had any luck.
>
> P.S. I do not need any special services, just proper DTMF tone 
> handling.
>
This might be a codec negotiation issue with the termination service.  
I am using Teliax with my asterisk server to terminate my SIP and IAX 
calls from several ATAs and softphones.  All of that works fine with 
DTMF.

I am using the G729 codec exclusively for my Teliax calls.  You also 
need to be sure that the extensions for each ATA/phone have the DTMF 
configured righteously.

HTH,
Marty

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