General Telephone Call Problems; Vpn-Connected Phone Does Not Log Calls; Phone Call Cannot Be Established - Cisco Unified IP Phone 8941 Administration Manual

Solution
Changes need to be made on the Cisco Unified Communications Manager. For more information, see the
Cisco Unified Communications Manager Systems Guide.

General Telephone Call Problems

The following sections help troubleshoot general telephone call problems.

VPN-Connected Phone Does Not Log Calls

Problem
A remote location (home office) phone that is connected through the VPN does not log missed, placed, or
received calls.
Cause
Without explicitly setting the Alternate TFTP setting, the Cisco IP Phone cannot contact the TFTP server and
download the configuration and other files, and function properly.
Solution
Set up the phone to use the Alternate TFTP server and configure the TFTP server IP address.
Related Topics
Set Up Remote Phone, on page 180

Phone Call Cannot Be Established

Problem
A user complains about not being able to make a call.
Cause
The phone does not have a DHCP IP address, is unable to register to Cisco Unified Communications Manager.
Phones with an LCD display show the message Configuring IP or Registering. Phones without an
LCD display play the reorder tone (instead of dial tone) in the handset when the user attempts to make a call.
Solution
1 Verify the following:
a The Ethernet cable is attached.
b The Cisco CallManager service is running on the Cisco Unified Communications Manager server.
c Both phones are registered to the same Cisco Unified Communications Manager.
2 Audio server debug and capture logs are enabled for both phones. If needed, enable Java debug.
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0 (SCCP

General Telephone Call Problems

and SIP)
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