Avaya Aura™ Communication Manager Overview

Uniform Dial Plan

Uniform Dial Plan

A unique four- or five-digit number assigned to each station on the network. Uniform numbering gives each station a unique number (location code plus extension) that can be used at any location in the electronic tandem network to access that station, Communication Manager enhances the standard UDP with the unrestricted 5-digit Uniform Dial Plan, which allows up to five digits to be parsed for call routing.

Dial Plan Expansion

With Communication Manager release 4.0, you can expand your dial plan to a maximum of

13 digits. This affects telephones, data modules, login IDs, and vectors.

Administrators have the flexibility to administer dial plans between 3 and 13 digits in length.

Communication Manager supports mixed digit lengths in the same dial plan within a location and across a network of locations.

Customers upgrading to Communication Manager 4.0 can choose to migrate to the expanded

13-digit dial plan. Customers who choose not to migrate may convert their dial plans at a later date.

Distributed Communications System (DCS) protocol is limited to a dial plan of 3-5 digits. If your dial plan requires 6 or 7 digits, QSIG, which is the generic name for a family of signaling protocols, is required.

Note:

Note:

Some features cannot expand to 13 digits. For a complete description of the Dial

Plan Expansion feature, see the following documents: l l

Avaya Aura™ Communication Manager Feature Description and Implementation,

555-245-205.

Administering Avaya Aura™ Communication Manager, 03-300509.

Multi-location dial plans

When a customer migrates from a multiple voice server QSIG/DCS network to a single voice server whose gateways are distributed across a data network, it may initially seem as if some dial plan functions are no longer available.

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This feature preserves dial plan uniqueness for extensions and attendants that were provided in a multiple QSIG/DCS network, but were lost when customers migrated to a single distributed network. This feature provides dial plan capabilities similar to those provided before the migration, including: l extension uniqueness l announcement per location l local attendant access l local ARS code administration

A major reason to migrate customers from a multiple QSIG/DCS environment to a single S87XX network is to provide a greater set of features and help reduce costs. Migrating to a single network reduces the number of systems a customer has to maintain. That in turn lowers administration costs - one switch to administer instead of multiple switches, one dial plan to maintain, and so on. With a single distributed network solution, some features no longer work transparently across multiple locations.

For example, in a department store with many locations, each location might have had its own switch with a QSIG/DCS network. That way, the same extension could be used to represent a unique department in all stores. For example, extension 123 might be the luggage department in all stores. If the customer migrates to a single distributed network, this functionality is not available without this feature.

In addition, an S87XX solution does not assure that a call that is routed to an attendant would terminate at the local attendant. Let us use an example of a public school district that previously was networked with a switch at each school. If the school district migrates to an S87XX network, dialing the attendant access code at your school may not route your call to the local attendant.

Instead of having to dial a complete extension, the multi-location dial plan feature allows a user to dial a shorted version of the extension. For example, a customer can continue to dial 4567 instead of having to dial 123-4567. Communication Manager takes the location prefix and adds those digits to the front of the dialed number. The switch then analyzes the entire dialed string and routes the call based on the administration on the Dial Plan Parameters screen.

Note:

Note:

You can use the Per-Location Dial Plan feature to allow different branches to have different short extensions, so that the extensions do not conflict across branches.

Punctuation on station displays

On digital telephone displays, Communication Manager can display punctuation to make reading a longer extension easier.

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Uniform Dial Plan

Punctuation marks that are allowed include: l l hyphen (for example, xxx-xxxx) period (for example, xxx.xxxx) l space (for example, xx xx xx)

Formats for displaying numbers with punctuation are on the Dial Plan Parameters screen.

For more information on the Dial Plan Parameters screen, see Administering Avaya Aura™

Communication Manager, 03-300509.

Extended trunk access

Used with Uniform Dial Plan, allows the system to send any unrecognized number (such as an extension not administered locally) to another system for analysis and routing. Such unrecognized numbers can be Facility Access Codes, Trunk Access Codes, or extensions that are not in the Uniform Dial Plan table. Non-Uniform Dial Plan numbers are administered on either the First Digit Table (on the Dial Plan Record screen) or the Second Digit Table. They are not administered on the Extended Trunk Access Call Screening Table. Extended Trunk Access helps you make full use of automatic routing and Uniform Dial Plan.

Extension Number Portability - When employees move within the network, they can retain their extension numbers. The ability to keep extension numbers, and even Electronic Tandem

Network and Direct Inward Dialed numbers, when moving to other locations within the company eliminates missed calls and saves valuable time.

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