i have got a new pc p4 3.06 with the best hardware and a good sound card,my sounds works great and i could talk on my microphone on paltalk and yahoo messenger with no problem, however the other person on the other side can not hear my voice ,i run all kind of test with messenger audio test and the mic is working just fine and you could see the voice indicator going up and down ,but still they can not hear me, what do you think the problem would be? i need your help in this.

If you haven't done so already, try recording your voice & playing it back as you may need to adjust the volume level of the microphone.

thanks for your replay.
i did all that.
do you have any other option

Does your camera have a microphone itself? Check to make sure its taking the sound from the right place in the setting. I forgot exactly since i dont own a webcam but i helped a freind once had the same problem it was taking the sound from the wrong input.

If you're behind a firewall or router, make sure you have the right ports open: http://board.iexbeta.com/ibf10/index.php?showtopic=20267

i have a webcam and i have the other mic both are the same ,and we disabled the firewall, what port should we open for it anyway if we enable it?

Take a look here: Microsoft Knowledge Base Article - 278887

there is no router on this pc

the motheroard of the system is intel perll 865 and somebody told me that it has some security enhancement in it i am going to check it tommorow for i dont have time now,does anyone have an idea or documentation about it.

Try upgrading to the new 6.2 version now and try again .

i sloved it by disabling the Qos pocket schedual from lan properties.it was a network card problem.