How to play mp3 or wave file over Abbeyphone in firefox?

Hello,

i have a problem..
I need to play music file (mp3 or wave) during call over abbeyphone in firefox.. Is it possible?

Just imagine..
i have a basic web application with some mp3s, i will call to somebody and i need to play it.

i tried function of soundcard called "play what hear".. this works, but theres huge echo on other side.. The person whose i am calling listens hisown voice..

thanks

sorry for english

As you are finding, you will not have enough control over the audio mixing to be able to do this successfully. You need to take one or both parts of the equation out of the PC.

Perhaps experiment with using a USB connected phone (that will have its own internal soundcard) or take a look at Asterisk and do it all there.

I found aditional software that can play music during call. It works with SJphone 1.65. I dont remember name.. but there was lot of smilies, pictures, sounds, emoticons.. Some IM upgrade..

So, its possible to play music during call over VoIP with out experimenting with USB phones and cables etc..
but the question is how

any ideas?