VoiceBlue Ring problem

set to ->2 (instead of 0 or 1) "Delay of ALERTING (s)" parameter.

This parameter should indicated how much second voip interface have to wait from gsm interface to send ring information. Manual say:

"Delay for ALERTING [s]: a delay before sending information om ringing start"

Then, about RING, you can choose if sending Ringing made from Asterisk ("Send 180 ringing instead of 183 Session progress" option checked) or let the user calling listen the ringing signal information sent from the GSM Network.

Bad setting

Good setting

SIP setting

If nothing works

Then try to communicate with Device over Telnet.

Set Alert from 0sec to 2sec via telnet: at%g19=2,0,0,0