I am trying to use the free version for a small home PBX with two SPA3102's. One is connected to a PSTN line and the other is connected to Vonage's PAP2 modem. I cannot make outgoing calls. I can receive incoming calls on the PSTN line. I cannot make or receive calls on the Vonage line through the PBX. When I try to make an outgoing call on either line after about 15 sec I get a message that says I am using an incorrect carrier authorization code. Any help will be appreciated. Thanks.