Choppy Speech; Troubleshooting Procedures; Check Tftp Settings - Cisco 7800 Series Administration Manual

Choppy Speech

Choppy Speech
Problem
A user complains of choppy speech on a call.
Cause
There may be a mismatch in the jitter configuration.
Solution
Check the AvgJtr and the MaxJtr statistics. A large variance between these statistics might indicate a problem
with jitter on the network or periodic high rates of network activity.

Troubleshooting Procedures

These procedures can be used to identify and correct problems.

Check TFTP Settings

Procedure
Step 1 On the phone, press Applications
Step 2 Select Admin Settings > Network Setup > IPv4 Setup.
Step 3
Check the TFTP Server 1 field.
If you have assigned a static IP address to the phone, you must manually enter a setting for the TFTP Server
1 option.
If you are using DHCP, the phone obtains the address for the TFTP server from the DHCP server. Check that
the IP address is configured in Option 150.
Step 4 You can also enable the phone to use an alternate TFTP server. Such a setting is particularly useful if the
phone recently moved from one location to another.
Step 5 If the local DHCP does not offer the correct TFTP address, enable the phone to use an alternate TFTP server.
This is often necessary in VPN scenarios.
Related Topics
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
200
Phone Cannot Connect to TFTP
.
Server, on page 193
Cisco IP Phone Troubleshooting