Nortel Networks NN43119-101 manual One-way audio, Broken or choppy speech, Audio buffering

Troubleshooting the IP Softphone 2050

One-way audio

If you experience problems with one-way only audio:

•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, see “Audio” on page 86.

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.

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