Are incoming calls from IPKall to VoXalot working fine...?
I can suggest two solutions:
1.
-In line 1 where you have SipGate under the dial plan line add this:
(The Dial Plan you have right now...leave it there|18xx.<:@sipbroker.com>)
This means you no longer have to change lines from 1 to 2 for toll free calls ... 1800 should be forced directly over SipBroker
(If you can post the current dial plan under line 1 we can adjust this further).
2.
Rather than using port 5061 (in line 2), use 4060 or 3060 and set up the proxy as noted here
Setting up Linksys PAP2 - Voxalot FAQ