[asterisk-users] Audiocodes MP-114 MWI Stutter Tone

[Joseph]

Does anybody knows how to enable "Stutter Tone" on Audiocodes MP-114?
Similar feature like Sipura has, when message is left in a mailbox the unit send a 0.5sec ring tone to the phone every 30min. or so.

IN:
SIP Advanced Parameters --> Supplementary Services:
Message Waiting Indication (MWI) Parameters
   Enable MWI: enable
   MWI Analog Lamp: enable
   Subscribe to MWI: Yes
   MWI Server IP Address: My_asterisk_IP
   MWI Server Transport Type: Not configured
   MWI Subscribe Expiration Time: 7200
   Stutter Tone Duration: 2000
   MWI Subscribe Retry Time: 20

MWI Lamp is working but there is no "Stutter Tone"

-- 
Joseph