If this is an occasional thing to do, you can first disable answer supervision on quintum, then set a hopoff pattern of 9999, no replacement. Send a call from your remote gateway of 9999 to the quintum. If everything is set right, then the quintum will go off-hook to your GSM, immediately say the call is connected and then you can dial any digits you want and they will be passed through to the GSM. When done, don’t forget to enable answer supervision on quintum.
MikeM
mike_voip@hotmail.com