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Release DHCP Address

Procedure

Step 1

Scroll to the DHCP Address Released option.

Step 2

Press Edit.

Step 3

Press Yes to release the DHCP Address.

DHCP Usage

If you are configuring the Ethernet network settings on the phone for an IP network, you can set up an IP

address for the phone by either using DHCP or manually entering an IP address.

You must also enter the domain name for the phone in the Ethernet Setup page.

Note

Set Up Phone To Use DHCP

To enable DHCP and allow the DHCP server to automatically assign an IP address to the Cisco Unified IP

Phone and direct the phone to a TFTP server, perform these steps:

Procedure

Step 1

Press Applications and choose Administrator Settings > Network Setup > Ethernet Setup > IPv4 Setup.

Step 2

To enable DHCP, set DHCP Enabled to Yes. DHCP is enabled by default.

Step 3

To use an alternate TFTP server, set Alternate TFTP Server to Yes, and enter the IP address for the TFTP

Server.

Note

Step 4

Press Apply,

Set Up Phone To Not Use DHCP

When not using DHCP, you must configure the IP address, subnet mask, TFTP server, and default router

locally on the phone.

Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications

Manager 10.0 (SCCP and SIP)

Consult with the network administrator to determine whether you need to assign an alternative TFTP

server instead of using the TFTP server that DHCP assigns.

Cisco Unified IP Phone Settings