[Asterisk-Users] DTMF issues (handytone)

[Ivan Meic (Vox Mundi)]

Hi Mike,

>  I have tried the Handytone set for DTMF info and rfc-2833 (as well as exp
>with inband) as well as the sip.conf entry for it.

>From my experience DTMF with any Grandstram device works well only
with SIP INFO method ... give it a try (remember to set it up on asterisk as
well).

Best regards,
Ivan Meic