Audiocodes MP114

Incoming call hears a dial tone for a number of seconds then the extension rings.

When I changed the MP114 values for Dial Tone Duration [sec] Dial Tone Duration [sec] to ‘0’
(DTMF and Supplementary > DTMF & Dialing Dial Tone Duration [sec] Dial Tone Duration [sec]), incoming calls are routed seamlessly (no dialtone and straight to ring tone). The problem is with this setting there is no dial tone for outbound calls.

Any ideas?