[Asterisk-Users] Sipura-3000 - silent dial out on FXO port

[Dameon D. Welch-Abernathy]

Benjamin on Asterisk Mailing Lists wrote:

> When I connect to the Sipura to dial out on the PSTN line connected to
> the Sipura's FXO port, it gives me the dialtone of the PSTN line and
> then I can hear the DTMF for the number I dialled beforehand.
> 
> It does work but the customer perceives this delayed second DTMF
> feedback as "unprofessional" and the sipura as a "toy". I wonder if
> there is anything that can be done to keep the channel to the caller
> silent until after the Sipura has sent the DTMF out on the PSTN line.

Upgrade your firmware to the latest release. They solved that problem in 
the more recent releases (2.0.10 and above, IIRC).

-- PhoneBoy