[asterisk-users] GSM Gateway behind SIP ATA?

[Benchev]

On Thursday 03 January 2008 15:28:15 Remco Barendse wrote:
> I have an analog GSM Gateway that is connected to a normal SIP ATA device.
>
> Basically what it does is this : when you call the extension nr. of the
> SIP ATA port, the GSM Gateway will pick up the phone and presents a (new)
> dial tone, and then dials whichever DTMF tones it received. The SIP ATA ia
> a Grandstream HT286.
>
> I would like to use the GSM Gateway to route my outbound cellular calls,
> how do i do this in Asterisk? Basically Asterisk should dial the extension
> number and then send required number as DTMF tones to the Gateway through
> the ATA.
Basically Grandstream HT286 is a single port FXS ATA. 
In order to interconnect GSM gateway one would need FXO. 
Are you sure it gives you "new" dialing tone or this is the * itself
you hear?

Boyko