User`s guide

System Administrator’s Guide – Release 7.2.3.x

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Revised: September 1, 2010

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outside of this range but a switch from 4-digit extensions to 3-digit extensions is desired, all extensions that

are outside the range must be changed or deleted.

The following phone functions are affected when the extension length setting is changed. The format of the

number to dial is the same but the number of digits changes, depending on whether extensions are set to

three digits or four digits.

Function Format

†

3-digit Example

†

4-digit Example

†

Leave a voicemail 3 + extension 3199 31199

Check voicemail 6 + extension 6199 61199

Call forwarding 45 + extension 45199 451199

Answer alternate extension 7 + extension 7199 71199

In addition to the changes in user and system extensions, the following server configurations are

automatically modified when the extensions are changed from three digits to four digits:

• Extension call routes including Internal Caller-ID checking

• Incoming outside line call routes

• DID mappings

• System Speed Dials (the Speed Dial extension doesn’t change but the extension that is dialed as a

result changes)

• Speed Dial PFK (differs from Personal Speed Dial PFK)

• Default Extensions, extensions accessed by Shortcuts, and “Dial By Directory” listings of Auto

Attendants

• Call Detail Records (prior records are unaffected by the change)

• Off hook digits dialed for handsets

Functions Not Changed

The following are not affected:

†

• Personal Speed Dials (these are stored on the phones so they must be modified by the users)

• System Speed Dial extensions (350-399, 34000-34999)

• Call Park extension and Parking Orbits (700-709)

• Auto-Attendant extensions (400, 431-439)

• Door Relay (403)

• Message Center (404)

• Conference Center (408)

†

Extensions may vary per system. If you are using a non-default Internal Dial Plan, consult the Phone Features tab of the

My Allworx Manager page to determine what extensions are being used for the corresponding feature.