I have SNR setup on some dual-line phones. The incoming lines are FX0 if that matters. A user will be on the first line. The second line starts flashing. For the person calling in on the second line, the phone just rings. You can hear a click after the designated number of seconds but it does not transfer to the SNR number. They do have open lines for the outgoing call so that is not the problem. Is there a way to turn off SNR for the second line so it at least goes to voicemail instead of ringing infinitely?