It appears that VoipSwitch is now offering a generic VOIP SIP client that works on most any VOIP provider. This is based off their revised website information. It cost $20.00. I downloaded earlier today but I have not been able to get it to open on my BB9700. I have a ticket in with their customer service awaiting a reply hopefully tomorrow. If anyone has any luck and can confirm sucess please advise. I don't know why it doesn't open.

Here is their website info:

BlackBerry softphone – retail version:
- Generic version of our Vippie BlackBerry softphone. It can work with any SIP server, user can enter the sip server details and his log in username/password. Please visit our retail shop in order to purchase the application.

Blackberry sip softphone client download | VoipSwitch