SIP User's Manual
3.
In the 'Tel to IP Routing' page (refer to ''Tel to IP Routing Table'' on page 156), enter
20 for the destination phone prefix, and 10.1.10.2 for the IP address of the FXO
device.
Note:
Version 5.4
Figure 7-13: Automatic Dialing for FXS Ports
Figure 7-14: Tel-to-IP Routing
For the transfer to function in remote PBX extensions, Hold must be disabled
at the FXS device (i.e., Enable Hold = 0) and hook-flash must be transferred
from the FXS to the FXO (HookFlashOption = 4).
347
7. IP Telephony Capabilities
May 2008