GOautodial Open Source Omni-channel Contact Center Suite

Hi There

I'm wondering is someone can help me configure this, We Already have an asterisk box in house but its custom built and programmed by a previous engineer and I'm hoping to make a link from the old Asterisk box to go autodial for certain extensions e.g I have an inbound campaign and I've given it a DID/TFN of 8888, I want someone on our asterisk box to be able to transfer their call to extension 8888 which would forward them into a DID/TFN to the campaign on the goautodial box.

Here's my IAX link info:

Goautodial box
[003]
disallow=all
allow=gsm
allow=ulaw
type=friend
dtmfmode=rfc2833
context=trunkinbound
qualify=yes
insecure=very
nat=yes
host=172.16.0.10
username=godial
secret=******* (sorry had to hide this)

Asterisk Office box
[goautodial]
type=friend
disallow=all
allow=alaw
host=172.16.0.24
defaultuser=godial
user=godial
secret=******* (sorry had to hide this)
context=local
trunk=yes
qualify=yes
requirecalltoken=no
nat=yes

register => goautodial:*******@172.16.0.24

I've set up an extension which has previously worked for all my testing, but this time I'm.

exten => _8888,1,Dial(IAX2/goautodial/${EXTEN},20)
exten => _8888,2,Congestion()

but when I dial I get This come up on the asterisk box (it doesnt even reach the goautodial box, Why is this? I have checked the passwords
no joking about 20 times.

[2014-06-10 13:00:35] WARNING¹⁶³⁶²: chan_iax2.c:10287 socket_process: Call rejected by 172.16.0.24: No authority found