Avaya Configuring Dial Services Manual de usuario Pagina 149

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Dial-on-Demand Implementation Notes
308621-14.00 Rev 00
6-7
After placing the initial call, the client waits for a return call from the server. A
user-specified parameter determines how long the client waits for a response.
During this time, the client will not place an outgoing call to any other destination.
To set the callback configuration parameters, see “Enabling Callback” on
page 12-31.
Demand Circuit Groups
A demand circuit group is a set of demand circuits that share the same
user-defined unnumbered protocol configuration. An unnumbered protocol
configuration does not restrict the router to a specific destination address. Instead,
it enables the router to use any circuit in the group for an incoming call,
eliminating the need to configure a unique demand circuit for each remote node in
the network. One demand circuit group supports many remote routers, thereby
reducing the configuration tasks for a large network.
Demand Pools and Demand Circuit Groups
Like individual demand circuits, a demand circuit group is associated with an
existing demand pool. The number of circuits in the demand circuit group must be
less than or equal to the number of lines in the demand pool. If you change the
number of lines in a demand pool, you must increase or decrease the number of
demand circuits in the group accordingly.
When the router activates a line from the demand pool, the circuits in a demand
circuit group also become available. The router does not bring up the circuits until
it receives an incoming call. Demand circuit groups can only receive calls.
A circuit group can use more than one demand pool. This enables the router to use
one configuration for circuits across the router’s slots, because demand pools
cannot use lines from different slots.
Each demand circuit group has its own ID. This number is distinct from the
demand pool ID that identifies the line pool. Both individual demand circuits and
demand circuit groups can use the same demand pool.
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