I am using a freecall.com account for outgoing calls. The issue is that if I enter the parameters directly in my ATA it works fine. But if I try to set it in mysipswitch dialing plan it gets an unauthorized message followed by temporarily not available. The dial plan is as simple as
exten => _X.,1,Switch(myusername,mypw,1${EXTEN}@sip.voiparound.com)
I add a country code prefix.
I tried it both ways with and without registration but it doesn't work.
I read about the similar problem in BlueFace forum with voipcheap call, which is exactly similar service, but no clear followup was posted.
Any suggestions?