Avaya B5800 Bedienungsanleitung PDF herunterladen (Seite 38)

announcements to waiting calls. Note that for this configuration, Embedded Voicemail

licenses are required.

For more information about licensing, see Licensing on page 16.

The Park and Page feature is supported when the system voicemail type is configured as

Embedded Voicemail or Standalone Voice Mail. Park and Page is also supported on systems

where Avaya Aura Messaging or Modular Messaging over SIP is configured as the central

voicemail system and the local Embedded Voicemail provides auto attendant operation. The

Park and Page feature allows a call to be parked while a page is made to a hunt group or

extension. See

Configuring Embedded Voicemail on page 173 for more information.

Branch PSTN call routing considerations

Each B5800 Branch Gateway system can support its own external PSTN trunks. When

deployed in an Avaya Aura

network, you have considerable flexibility over where outgoing

PSTN calls should emerge from the network and similarly where incoming calls should be

routed.

For examples of some of the options available, see

Branch PSTN call routing examples on

page 289. The examples demonstrate the following options:

• Centralized call control on page 289 — External calls at a branch site can be rerouted to

be dialed out at another site. This can be done for reasons of call cost and call control.

For example, the central site may have a bulk call tariff for national and international calls

that would benefit all branches.

•

Branch PSTN Override on page 292 — Having configured the branch to send outgoing

external calls to the Avaya Aura

Session Manager for onward routing, there may be

cases where a specific number should still be routed via the branches own PSTN

trunks.

•

PSTN Fallback on page 294 — The B5800 Branch Gateway can be configured to allow

some calls that would normally use the Avaya Aura

Session Manager line to be routed

via the PSTN when the Avaya Aura

Session Manager line is not available.

The various methods used in the these examples can be combined to match the customer's

needs. However the main aim should be as follows:

• To keep the branch configuration as generic as possible, i.e. to use the same PSTN call

control in all branch configurations. This simplifies maintenance of multiple branches.

• To centralize as much of the PSTN call control in the Avaya Aura

Session Manager as

possible. Again this simplifies maintenance and control.

Planning

38 Implementing the Avaya B5800 Branch Gateway for an Avaya Aura

Configuration October 2012

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