User guide

Defining System Call Restrictions
AltiWare OE System Administration Manual 33
System
Configuration
Enabling Hop Off for Tie Trunks
When selected, this function allows for calls over T1 Tie Trunks to use
PSTN trunks or other servers, when those trunks have been configured to
accept tie-trunk calls. For Hop Off to work, it must be enabled on all
AltiServ systems on which trunk calls are able to be used as a transit switch.
Figure 6. Hop Off for Tie Trunks
The trunk configuration to allow this function is discussed under “Setting
General Trunk Attributes” on page 73.
The board must be configured to allow for Tie Trunks, as discussed in
“Setting up T1 or PRI Channels on the Triton T1/PRI Board” on page 65.
Restricting Tie Trunk Calls
You can set call restrictions on tie trunk calls by telling the system to use
the same restrictions as the ones set up for an extension. Using the Call
restriction follows extension drop-down list, you can select the extension
with the restrictions to use for the tie trunk calls.
System BSystem A
Tie Trunk:
T1/PRI or VoIP
Outgoing call
on PSTN Trunk
The call originating on System B hops off over the T1/PRI or VoIP trunk to use the PSTN trunk in
System A. Both System A and System B must be set up and configured to use hop-off for tie-trunks.