[Asterisk-Users] grandstream handytone 286 sometimes dials out wrong number

[Giorgio Incantalupo]

Hi Martin,

I have 3 choices on my ATA webpage and I chose SIP INFO:
/Send DTMF: / in-audio via RTP (RFC2833) via SIP INFO

This is the only point I can make changes since it is connected to my 
asterisk box through a TDM400P:
asterisk box <--->TDM400P <-(telephone cable)-> HT-288 <---> LAN <---> 
Internet <---> Messagenet VoIP provider

We examined Messagenet provider logs and, I do not why, we lose 1 call 
on 30 made...our customer loses 1 call on 2 (50%).
We think it is the ATA sending bad DTMF sometime.
Seems strange anybody else but me hadn't had problems like this...I 
found nothing on internet...


TIA

Giorgio Incantalupo


Martin Joseph wrote:
>
> On Mar 6, 2006, at 6:46 AM, Giorgio Incantalupo wrote:
>
>> Hi,
>> I have an asterisk 1.2.1 (on a debian sarge) box with a TDM400P card. 
>> I connected the TDM400P to a grandstream 286 to use a VoIP provider.
>> It seems all right except for a little problem: one call every 30 is 
>> made to a wrong number.
>> Is there anybody who had the same problem and solved it?
>>
> Usually this is DTMF issue? So make sure the extensions and the HT286 
> have the correct DTMF config. I have some experience with the HT-488 
> FXS and that needed to have dtmfmode=rfc2833 in the extensions and the 
> configuration on the HT-488 set the same.
>
> Hope this helps,
> Marty
>
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