Hi,
I am also facing the same problem on mac, of no voice exchange b/w mac and landline. Is there any other voip softphone in market for mac, so that I can try that one to see that there is something wrong with either express talk or voiparound account. I believe that either voiparound or voipbuster they all belong to one company. I would appreciate for any kind of help on this issue.
Baloo