Features Page 247 of 910
IP Line Description, Installation and Maintenance

Feature operation of the Voice Gateway DISI

The Voice Gateway can also be disabled from the CLI of a Voice Gateway
Media Card. When the disiVGW command is executed, the following
happens on that card’s Voice Gateway:
• Idle gateway channels are unregistered.
• A busy gateway channel is unregistered when it becomes idle.
Note: Care should be taken with this command to avoid a potential
problem when calls are placed on hold. When an IP Phone has a call on
hold, the voice gateway channel on the card is idle; however, it is still
reserved in the Call Server. If the voice gateway is still disabled when the
call is taken off hold, the call does not have a speech path.
IMPORTANT!
When only the disiTPS command is entered on a Signaling Server and
the mastership remains with that Signaling Server, then IP Phones can
reregister to both Voice Gateway Media Cards and another Signaling
Server in the node.
To ensure that the IP Phones reregister only to the secondary Signaling
Server, Nortel recommends that the command disableServices be
used on the Signaling Server instead of disiTPS. Using the disiTPS
command alone on the on the Signaling Server is not recommended.
Alternatively, the vtrkShutdown command followed by the disiTPS can
be entered.
Recommendation
Nortel recommends that the LD 32 DISI command be used for disabling
the gateway channels.