Cisco Systems ata 186 Manual De Usuario
8-3
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)
OL-4803-01
Chapter 8 Troubleshooting
Installation and Upgrade Issues
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.
frequently.
Symptom
Cannot place call.
Possible Cause
Equipment failure on the network.
Recommended Action
Replace defective network equipment.
Possible Cause
Recipient has not registered the IP phone.
Recommended Action
Register the IP phone.
Possible Cause
Ethernet cable is not connected.
Recommended Action
Make sure that all cables are connected.
Symptom
Fast busy tone.
Possible Cause
Authentication credential is incorrect.
Recommended Action
Verify authentication credential, and revise if necessary.
Possible Cause
Recipient has not registered the IP phone.
Recommended Action
Register the IP phone.
Possible Cause
No common codec between the Cisco ATA and remote end.
Recommended Action
Change codec to one that is common with the Cisco ATA and the remote end.
Possible Cause
Recipient is in a call with call waiting disabled.
Recommended Action
Attempt to place the call at a later time.
Installation and Upgrade Issues
Note
The following issues apply to the manual image-upgrade process only. Image upgrades must be
performed separately.
performed separately.