[asterisk-users] Sip Trunk registration

[Zamtron Spain]

Hi
Can anybody help  me on this ?

I am using Asterisknow 1.5.0-Beta(Freepbx)

I am having a problem getting the sip trunks to register. 
It makes no different which provider one is using.

Trunk name: callcentric
Peer Details:

context=from-pstn
fromdomain=callcentric.com
fromuser=1777xxxxxxx
host=callcentric.com
insecure=very
secret=pasword
type=peer
username=1777xxxxxxx

Register String: 
1777xxxxxxx:password at callcentric.com/1777xxxxxxx

I believe that the above configuration is correct.
I have tried different sip trunk providers but it makes no difference.
They are unable to login.
If I put the configuration in to an ata the there on problem.


Thanks and regards
Andrew 
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