Specifications

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Catalyst 4224 Access Gateway Switch Software Configuration Guide
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Chapter 6 Configuring VoIP
Configure Voice Ports
Troubleshooting Tips
If you are having trouble connecting a call and you suspect the problem is
associated with the voice port configuration, you can try to resolve the problem
by performing the following tasks:
• Ping the associated IP address to confirm connectivity. If you cannot ping the
destination, refer to the Network Protocols Configuration Guide, Part 1 for
Cisco IOS Release 12.0T.
• Use the show voice-port command to make sure that the port is enabled. If
the port is offline, use the no shutdown command.
• Make sure the VICs are correctly installed. For more information about
installing a VIC in your router, refer to the Cisco WAN Interface Cards
Hardware Installation Guide.
Fine-Tune FXS and FXO Voice Ports
In most cases, the default values for voice-port tuning commands are sufficient.
Depending on the specifics of your particular network, you might need to adjust
voice parameters involving timing, input gain, and output attenuation for FXS or
FXO voice ports. Collectively, these commands are referred to as voice-port
tuning commands.
If you need to change the default tuning configuration for FXS and FXO voice
ports, use the commands outlined in Table 6-4, beginning in privileged EXEC
mode:
Table 6-4 Commands to Fine Tune FXS and FXO Voice Ports
Task Command Valid Entries
Default
Value
Step 1
Enter the global configuration
mode.
configure terminal
Step 2
Identify the voice port you
want to configure, and enter the
voice port configuration mode.
voice-port
slot-number/port