System information

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474 Provisioning the IP Phones

— Current system-specific Provisioning Info Block carried by

Nortel-i2004-B DHCP options

— Current existing Nortel DHCP options (existing Nortel-i2004-A and

VLAN-A options)

•

Automatic provisioning using UNIStim

• LPR (Last auto received value)

• Factory default

For more information configuration options priorities, see “Precedence rule

and stickiness control” (page 474).

The TFTP provisioning server, the DHCP server, or both can provide the

automatic Provisioning Info Block. The servers share the same syntax

defining the Provisioning Info Block. The TFTP provisioning server

provides the Provisioning Info Block in a set of .PRV files, where the

DHCP Server provides the Provisioning Info Block with a new Vendor

Specific String Nortel-i2004-B.

Operation

This section describes the automatic provisioning feature operation.

Precedence rule and stickiness control

The IP Phone 2007, IP Phone 1100 Series, and IP Phone 1200 Series

can obtain provisioning information from many sources at various times. A

precedence rule can resolve the possible conflict when different values are

specified in various sources for one parameter. The Phase II IP Phones

(IP Phone 2001, IP Phone 2002, and IP Phone 2004) do not support the

precedence rule, therefore the phones use the last value received.

Provisioning information from a provisioning source with high priority

can overwrite the provisioning information from a provisioning source

with low priority. The manual provisioning has highest priority. The other

provisioning sources are auto-provisioning sources.

Automatic provisioning defines provisioning control for each parameter.

You can either manually or automatically provision each parameter. Each

provisioning parameter provides an attribute that specifies if the parameter

was previously provisioned manually or automatically.

The default value of the stickiness attribute is AUTO. If the provisioning

parameter is AUTO, the IP Phone can receive the value from automatic

provisioning sources based on the precedence rule. If you manually

change the parameter, the attribute value is MANUAL. If the attribute

is MANUAL, the provisioning information from automatic provisioning

Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 05.02 26 May 2009