Using /var/spool/asterisk/outgoing/ to originate a call - fails?

My call record copied to  /var/spool/asterisk/outgoing/

Channel: SIP/E-SIP
MaxRetries: 1
RetryTime: 60
WaitTime: 30
;Context: a1test
;Extension: 182
;Priority: 1
Application: dial 182@a1test
CallerID: 105 <105>


The Context:

[a1test]
exten => _182,1,Dial(${OUTTRUNKSIP}/27824496273,60,)
exten => _182,2,Hangup

sip.conf

[E-SIP]
type=friend
host=196.12.32.4
secret=wsasaw
disallow=all
allow=g729:60
canreinvite=yes
context=internal
username=voips


The result:

Attempting call on SIP/E-SIP for application dial 182@a1test() (Retry 2)
    -- Attempting call on SIP/E-SIP for application dial 182@a1test() (Retry 2)
       > Channel SIP/E-SIP-093a8d20 was never answered.
[Nov  3 22:51:25] NOTICE[30759]: pbx_spool.c:341 attempt_thread: Call failed to go through, reason (8) Congestion (circuits busy)


Please help.....