Altigen MAX Communication Server ACC 6.5, Administration Manual

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Chapter 25: Enterprise VoIP Network Management
358
MAXCS ACC 6.5 Administration Manual
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If multiple systems in the VoIP domain have a PRI interface, it’s possible that DID
numbers could be duplicated. For example, say the DID number for extension 1001
is configured as 250. In this case, the DID number 5102520
250 and 4087899 250
will ring extension 1001. To ensure that this doesn’t happen, you can do one of two
things: (1) Make sure the DID numbers are not duplicated; (2) Ask the CO to send
more digits (to decrease the likelihood of identical DID numbers).
Relocating a Global Extension Using #27 on Analog Phone vs IP Phone
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Analog phone: The phone must be off hook. The user presses #27 and follows the
voice prompts. User must press # after inputting the password.
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IP phone: The IP phone must be on hook. The user presses #27, and then inputs the
global extension number and password. The global extension is then relocated to
this IP phone.
If system B does not have a prior record of this extension, it will create a new
extension with known information and the following settings:
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Enable IP Extension and Dynamic IP Address settings will be selected
automatically (in MaxAdmin, Extension Configuration window).
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The newly created extension will use the default voice mail, mail forwarding,
notification, call handling, restriction, and monitor list settings (in MaxAdmin,
Extension Configuration window).
Note : The administrator needs to make the proper changes for this user when
the global extension is relocated by the user.
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When this Global extension user returns to his home office, all settings are
stored in the REL database. The administrator does not need to change these
settings when the user presses #27 to relocate the extension the next time.
Relocating More Than One Global Extension
When more than one global extension is being relocated at the same time, and voice
mail is also being relocated, the voice mail of the extension that was relocated first will
be copied over completely to the relocation site, before copying begins for the voice mail
of the second extension, and so on.
The extension, itself, is relocated immediately.
Redirecting AltiGen IP Phones When a Server Is Down
Relocating a global extension, described in the preceeding section, is intended to serve
employees who are physically relocating to another office for a time. Administrators can
also configure global AltiGen IP phones to register to another server in the VoIP domain
when their primary server goes down for some reason. All configured phones switch over
at the same time. When their primary server returns to service, the administrator can
switch the phones back to their primary server by clicking the
Switch Back to Home
Server button in the Servers > Information tab. For more complete information, see
“Setting an Alternate Server for AltiGen IP Phones” on page 349.
Note:
When you redirect AltiGen IP phones, voice mail is not moved. Otherwise, the
extension configuration changes of the redirect feature are the same as they are
with normal relocation.
Note:
If Native VM Integration with Microsoft Exchange 2007 is also configured, users
can access their voice messages from both the primary and alternate servers, if
both have the same dial plan configured in the Microsoft Exchange server.
Note:
Redirection does not work when an extension user is using IPTalk.