Cisco Systems 188 Manual De Usuario
9-2
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SIP)
OL-3410-01
Chapter 9 Troubleshooting
Symptoms and Actions
Symptoms and Actions
Symptom
Parameters with values set by using the web server interface or voice configuration menu revert
to their original settings.
Possible Cause
You are using TFTP for configuration (the UseTFTP parameter is set to 1). The
Cisco ATA has a cached version of its configuration file stored in its flash memory; this is what
displayed or played through the web server interface or voice configuration menu. If UseTFTP is set
to 1, then the cached value of the Cisco ATA configuration file is synchronized with its configuration
file located at the TFTP server. This synchronization update of the cached value occurs at
approximate intervals determined by the CFGInterval parameter value as well as when the Cisco ATA
powers up or resets.
displayed or played through the web server interface or voice configuration menu. If UseTFTP is set
to 1, then the cached value of the Cisco ATA configuration file is synchronized with its configuration
file located at the TFTP server. This synchronization update of the cached value occurs at
approximate intervals determined by the CFGInterval parameter value as well as when the Cisco ATA
powers up or resets.
Recommended Action
If you are using TFTP for configuration, do not use the web server interface or
voice configuration menu to modify the value of the Cisco ATA configuration file. Use the web server
interface or voice configuration menu only to initially configure the Cisco ATA to contact the TFTP
server for the Cisco ATA configuration file.
interface or voice configuration menu only to initially configure the Cisco ATA to contact the TFTP
server for the Cisco ATA configuration file.
Symptom
Unable to access the web configuration page.
Possible Cause
Software versions earlier than 2.0 require the web configuration page to be enabled
using option 80# on the voice configuration menu.
Recommended Action
Upgrade the software.
Symptom
The Cisco ATA does not seem to be configured using the TFTP server.
Possible Cause
The TFTP server address is not properly set.
Recommended Action
Ensure that the TftpURL is correctly set to the URL or IP address of the TFTP
server that is hosting the configuration file for the Cisco ATA. If you are using DHCP to supply the
TFTP server IP address, make sure that the TftpURL is set to 0. Also, unless the TftpURL is an IP
address, be sure that the DNS1IP and DNS2IP values are properly set to resolve the TftpURL
supplied by DHCP.
TFTP server IP address, make sure that the TftpURL is set to 0. Also, unless the TftpURL is an IP
address, be sure that the DNS1IP and DNS2IP values are properly set to resolve the TftpURL
supplied by DHCP.
Symptom
The Cisco ATA contacts the TFTP server more often than specified in the CfgInterval
parameter.
Possible Cause
The ToConfig parameter is not set to 0.
Recommended Action
After the Cisco ATA has a valid configuration file, the ToConfig parameter must
be set to 0. If it is not set to 0, the Cisco ATA will attempt to contact the TFTP server too frequently.
Symptom
Cannot place call.
Possible Cause
Equipment failure on the network.
Recommended Action
Replace defective network equipment.