Avaya B5800 Bedienungsanleitung PDF herunterladen (Seite 38)

• Avaya Communication Server 1000 R7.5 with SIP Line Gateway must be installed and

configured at the headquarters location.

• A stand-alone Secure Access Link (SAL) Gateway R2.1 must be deployed.

Note:

SAL Gateway does not support alarming for B5800 Branch Gateway managed devices

in CS 1000 deployments.

Note:

System Platform's virtual SAL gateway is not supported.

Dial plan considerations

A uniform dial plan greatly simplifies configuration, management and phone calls within the

network branch sites. For example, if each branch has similar roles such as reception, manager

and warehouse - using the same extension number for each role and a unique prefix for each

branch allows calls between sites with little need for directory lookups. It also means a standard

configuration can be used at branches; simplifying installation, user training and

maintenance.

For our examples we have used the following dial plan for each branch site:

• 3-digit branch prefixes beginning with 8 — A 3-digit branch prefix in the range 800 to

899. This allows us up to 100 branches yet keeps call routing simple. Any dialing at a

branch that being with an 8 can be assumed to be a call to a branch number and can be

routed to the Avaya Aura

Session Manager for routing to the correct branch.

• 3-digit extension numbers beginning with 2 — 3-digit extension numbers for all native

extensions and hunt groups starting from 200. This is the default numbering used by

B5800 Branch Gateway.

Dial plan example

To describe a dial plan example, we have created Acme Travel, a travel agency with a growing

number of branches. Each branch follows the same pattern, with extensions for a branch

manager and a small team of travel consultants in a sales group.

Given the nature of the business, branch users need to make national and international calls.

The company has taken advantage of a bulk call contracts from it headquarters site so wants

Planning

38 Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012

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Avaya B5800 Bedienungsanleitung Seite 38