I currently have two SIP accounts, so Counterpath's XLite won't do, as it only handles one. They have a commercial version (Bria, eyeBeam : Not sure of the difference).
Before I buy either Bria or eyeBeam, I'd like to check if this is the only good SIP client for Windows that can handle more than one SIP account at a time, or if there are other options I should know about.