[Asterisk-Users] missing first digit when dial extension / dtmf problem ???

[Rich Adamson]

> I'm using dtmfmode=inband with Sipura=3000 when I dial an internal
> extension most of the time the first digit is missing and I get an
> invalid extension message.
> 
> Could it be dtmf problem or SIP?

On the spa3k, I've use dtmf tx method = auto. In sip.conf, no dtmf
entries at all (uses default). Been working just fine for many months.