Softphone sound quality problem

Another problem: I use softphone----Xten and Eyebeam.
But the sound quality is quite bad. It is kindof continuous.
Is there anything about DTMF ? I use RFC2833.

THANK YOU!!

What is ‘kind of continuous’?

Yeah, softphones aren’t much good in my experience. However, it does depend entirely on what hardware you’re running them on. If you’ve got a fast system with plenty of RAM and a good quality sound card you should get decent quality from it - so long as the computer isn’t heavily loaded with other stuff. If you’re using a lower range system with an onboard sound card, you’re not going to have much fun!

It’s best to buy cheap hardphone - e.g., Grandstream BudgeTone 100.