hey there bigredbus,
more information could be useful yet I think, however, just to clearify, when you say “sounds” you mean voice chat….right?
If so, then do you only hear “spits and spurts” of the sound or does your friend too? Or just him?
We all know dialup can be rather slow, and that will not help your situation with your sounds, if thus is the problem of course. Trying to keep your internet activity to a minimum while having voice or video conference is a good idea in possibly helping out this problem. Try to keep downloads and websurfing down. Also, maybe close off some programs on your computer that use the internet.
These are just suggestions, if this is the problem. If not, please try giving more information. Perhaps consider trying to search for through the forums for a similar topic, and you might just find an answer to your question in there.
Hope this fixes it tho:)