Can not receive incoming or outgoing calls?

I am trying to use sipdroid with my google voice on my Android. I have 
downloaded the latest edition. But when I click New Linked PBX it tells me that 
the trunk name is already in use and therefore I can't link. Even when I did 
get a chance to link sipdroid to the pbx, my incoming calls still weren't 
coming threw and I couldn't make any phone calls. This service is free correct, 
because I am wondering why nothing with sipdroid is working on my Android and 
now my google voice is not working either. PLEASE HELP.

Original issue reported on code.google.com by wajeha1...@gmail.com on 28 Jan 2012 at 5:33

sanachakri143 / sipdroid

Can not receive incoming or outgoing calls? #1016