here is my Asterisk CLI response:
> Channel SIP/1001-0926b3a8 was answered.
-- Executing AGI("SIP/1001-0926b3a8", "agi://127.0.0.1:4577/call_log") in new stack
-- AGI Script
agi://127.0.0.1:4577/call_log completed, returning 0
-- Executing Dial("SIP/1001-0926b3a8", "
SIP/916467231856@SIPTrunk") in new stack
-- Called 916467231856@SIPTrunk
-- SIP/SIPTrunk-092708e8 is circuit-busy
== Everyone is busy/congested at this time (1:0/1/0)
As you can see i have made changes on my vicidial campaign but it still dial 9 for US Local Number
I get circuit busy error when i dial using prefix 9 other then when I dial with international with 011 Prefix works perfect.