Cisco Systems ATA187I1ARF Manual De Usuario

To create a new configuration file, follow these steps: 

From Cisco Unified Communications Manager, choose Device > Phone > Find to locate the phone 
experiencing problems.

Choose Delete to remove the phone from the Cisco Unified Communications Manager database. 

Add the phone back to the Cisco Unified Communications Manager database. See 

 for details.

Power cycle the phone. 

When you remove a phone from the Cisco Unified Communications Manager database, its configuration 
file is deleted from the Cisco Unified Communications Manager TFTP server. The phone’s directory 
number or numbers remain in the Cisco Unified Communications Manager database. They are called 
“unassigned DNs” and can be used for other devices. If unassigned DNs are not used by other devices, 
delete them from the Cisco Unified Communications Manager database. You can use the Route Plan 
Report to view and delete unassigned reference numbers. See the Cisco Unified Communications 
Manager Administration Guide for more information.

Changing the buttons on a phone button template, or assigning a different phone button template to a 
phone, may result in directory numbers that are no longer accessible from the phone. The directory 
numbers are still assigned to the phone in the Cisco Unified Communications Manager database, but 
there is no button on the phone with which calls can be answered. These directory numbers should be 
removed from the phone and deleted if necessary.

A phone can register with a Cisco Unified Communications Manager server only if the phone has been 
added to the server or if auto-registration is enabled. Review the information and procedures in the 

 to ensure that the phone has been added to the 

Cisco Unified Communications Manager database.

To verify that the phone is in the Cisco Unified Communications Manager database, choose Device > 
Phone > Find from Cisco Unified Communications Manager Administration to search for the phone 
based on its MAC Address. For information about determining a MAC address, see 

.

If the phone is already in the Cisco Unified Communications Manager database, its configuration file 
may be damaged. See 

 for assistance.

If a phone is unable to obtain an IP address when it starts up, the phone may be not be on the same 
network or VLAN as the DHCP server, or the switch port to which the phone is connected may be 
disabled.

Make sure that the network or VLAN to which the phone is connected has access to the DHCP server, 
and make sure that the switch port is enabled.