Nortel Networks NN10041-112 manual Select Options Properties, and Adjust Volume for Recording

[Standard—Nortel Networks Confidential]

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Some sound cards have input mixing capabilities. To see if your card supports this

1Launch the Windows volume control application via Start > Programs >Accessories > Multimedia> Volume Control.

2Select Options > Properties, and Adjust Volume for Recording.

3Click Ok. If “Mixed Input” is checked, you can experience echo even when using a headset. Uncheck the checkbox and see if the echo has disappeared. (Note that not all sound cards have this feature.) Muting the 'Wave' on the recording settings may also help with this problem.

I'm making a call, and everything seems to work, except I can't send or hear any voice

First, make sure no other audio connections are running. If another application is using your sound card, the SIP Multimedia PC Client may not be able to access it.

Second, check to make sure your volume settings are correct.

I am using a NeoMagic Sound Card and am experiencing a “chipmunk” sound on my calls

Your sound card drivers may not be completely compatible with the SIP Multimedia PC Client. The following table lists the recommended driver versions for the NeoMagic card for the various Microsoft Operating Systems.

These cards are especially prevalent on Dell computers. These driver files can be downloaded from the www.dell.com website.

The Readme.txt file has instructions on how to install the drivers, or you can simply double-click on the setup.exe file and it should do everything for you. You'll be required to do a restart. Also, for a laptop, it is recommended to perform this upgrade while the computer is undocked.

Table 3 NeoMagic sound card drivers

Operating System	Recommended driver versions
Windows 98	NMAUDIOD.DRV	- 4.05.4204.0030Q
	NMAUDIOV.VXD	- 4.05.4204.0030Q

SIP Multimedia PC Client User Guide