I use Teamspeak. I host the server on my pc cause everybody else in the clan is behind a router. Try using the voice option so you dont have to use a key to talk, maybe thatll help. Also use the left alt key so it doesnt bother your in game keys. My ip changes alot as it isnt Static but if anybody wants to come in let me know. Also try changing your codec. From what you said I understand your on 56k ? Thats probly your problem, TS only uses bandwith when your talking, on 56k the most Kbs youll be have range from 1 to 6 so youll have to use a crappier codec which will make you sound crapy. That can be set in "Edit Channel" but it must be done by an admin. OH, I went and re read the posts. If the server is on 56k stick to text messaging on the server, youll be better off
not much you can do, try the codecs.