Avaya IP Telephony Průvodce konfigurací stáhnout pdf (Strana 69)

Chapter 3 Installing IP telephones 69

IP Telephony Configuration Guide

Moving IP telephones

IP telephones retain their DN when they are moved to a new location on the same subnet. The

following instructions apply to Nortel IP telephones.

Moving IP telephones and retaining the DN

To move an IP telephone without changing the DN:

1 If you want to retain DN-specific features such as Call Forward No answer and Call Forward

on Busy if an IP telephone becomes disconnected, you must activate the Keep DN alive

setting, as described below. Otherwise, go to step 2.

a In the Unified Manager, under the Services, Telephony Services list, click the DN record

for the IP telephone.

b Click the Capabilities heading.

c Beside the Keep DN alive field, choose Y.

Choosing N for this field allows the DN record to become inactive if the IP telephone is

disconnected. This produces a

Not in Service prompt if any of the special features,

such as Call Forward, are invoked.

Warning: If the system is reset while an IP telephone is disconnected, the Keep DN alive

feature becomes inactive until the telephone is reconnected. This setting must be enabled if

you want to change the codec or jitter buffer for an IP telephone that is offline.

Note: When an IP telephone is disconnected, there is about a 40-second delay before the

system activates Keep DN alive during which incoming calls will either get a busy signal or be

rerouted to the Prime set, depending on how your system is programmed. The same type of

delay occurs when the IP telephone is reconnected to the system.

2 Disconnect the power from the IP telephone or 3-port switch.

3 Disconnect the network connection.

4 At the new location, reconnect the network cable and the power connection.

5 If the new location is on a different subnet, you will need to make the appropriate changes to

the telephone IP addressing. However, do not change the S1 IP address or the S2 IP address.

Note: If your network is using partial DHCP, reconfiguration is not required at this step.

Moving telephones and changing the DN

To move a Nortel IP telephone and change the DN:

1 Deregister the DN using the instructions in “Deregistering DNs for IP telephones” on page 66.

2 Disconnect the network connection and the power connection from the telephone.

3 Reinstall the phone at the new location and reconfigure the telephone. For information about

this, see “Connecting the i200X telephones” on page 47.

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