Nortel Networks 9150 - Manual (Page 95)

Remote Gateway 9150 Installation and Administration Guide 65
January 2005 Planning for Remote Gateway 9150 unit installation
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to prevent the Remote Gateway 9150 unit from staying online permanently,
thereby eliminating unwanted ISDN BRI charges
When the RLC processes an offline entry, it instructs the Remote Gateway 9150
unit to go offline for a specified number of hours and minutes. The number of
hours and minutes the Remote Gateway 9150 unit stays offline is the difference
between the offline entry being processed and the next online entry.
For example, an offline entry is configured at 6:00 p.m. The next online entry is
configured at 9:00 a.m. the following day. When the RLC processes the 6:00
p.m. entry, it instructs the Remote Gateway 9150 unit to go offline for 15 hours.
When going offline, a timer is activated within the Remote Gateway 9150 unit.
When the timer expires (in the example above, at 9:00 a.m.), the Remote
Gateway 9150 unit automatically initiates a “going online” request to the host
PBX. If the RLC successfully receives the request, the Remote Gateway 9150
unit and its connected telephones go online.
Changing the online/offline mode
Whether an online/offline schedule is used or not, you can put the Remote
Gateway 9150 unit into online or offline mode at any time by dialing the online
or offline SPRE code at any telephone set connected to the Remote Gateway
9150 unit. The SPRE codes are configured on the Remote Gateway 9150 unit.
Trunk bandwidth allocation
The Remote Gateway 9150 unit can dynamically allocate available trunk
bandwidth to active calls in PSTN mode. As calls are initiated and bandwidth
requirements increase, additional trunk connections are established. Similarly,
as calls terminate and bandwidth requirements drop, calls are aggregated and
idle trunks are shut down.