Broken Or Choppy Speech - Nortel 2050 User Manual

• Check that your system administrator has programmed the handsfree option on the
communication server.
• Check that the mute button is disabled. If mute is enabled, the mute button on the Call Control
window appears red.
• If your server uses a Network Address Translation (NAT) device, check for proper NAT
configuration. One-way only audio problems can occur when incorrect NAT configuration
causes the IP Softphone 2050 to attempt to connect to the wrong IP address.

Broken or choppy speech

Broken or choppy speech can occur due to any of the following:
• Low level of audio buffering
• Windows transition effects
• Other running applications
Audio buffering
Use the Audio dialog box to adjust the level of buffering between your audio hardware and the IP
Softphone 2050. For details, refer to
Use the audio Quality slider to increase or decrease the amount of delay. Less delay speeds up
buffering, but reduces audio quality. Higher quality improves audio quality, but slows down
buffering.
When experiencing choppy or broken speech, move the Audio Quality slider toward Higher
Quality.
Windows transition effects
The Windows operating system uses very high process and thread priorities when performing
low-level Windows operations, such as minimizing and maximizing applications. This can cause
brief breaks in the IP Softphone 2050 audio streams.
To reduce the severity of these breaks, turn off the Windows transition effects for menus and tool
tips.
To turn off the Windows transition effects
1 Select Start > Control Panel > Display
2
Select the Effects tab, (or, in Windows XP, the Effects button on the Appearance tab).
3
Clear Use transition effects for menus and tool tips.
Other applications
Other applications running on your computer, especially CPU-intensive applications or
applications that intercept or delay packets (such as firewalls), can cause broken audio.
Chapter 11 Troubleshooting the IP Softphone 2050
"Audio" on page 53.
IP Softphone 2050 User Guide
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