asterisk users - Jun 2004 - Detect more than one type of DTMF for calls to voicemail

Hi,

I was thinking of raising a feature request, but thought I ask here first.
Basically I am looking for options to allow more than one type on incomming
dtmf types for incomming voice calls.

I am using purely SIP on my system and to the best of my knowledge there is
only option to specify one type of DTMF in SIP.conf

Feedback, suggestions will be appreciated.

Umar