[asterisk-users] iax reject using domain name

[Nhadie]

Hi,

I have this setup:

[asterisk 1]     [asterisk 2]
       |                |
       --[ asterisk 3 ]--
                |
            [cisco AS]
                |
              [pstn]

asterisk 1 and 2 are where the users register,casterisk 3 handles calls 
to/from pstn

i use iax peering between the registrar and asterisk 3, using realtime also.

on asterisk 3 i set:
host=my.domain.com

on asterisk 1 and 2 i set
host=201.202.203.204 (ip address of asterisk 3)

call from pstn to a user works, call from user going out gets rejected 
by asterisk 3.

from asterisk 1:
chan_iax2.c:7561 socket_process: Rejected connect attempt from 
201.202.203.202 (ip address of asterisk 1)

tried from asterisk 2 as well:
chan_iax2.c:7561 socket_process: Rejected connect attempt from 
201.202.203.203 (ip address of asterisk 1)

but when i set host='201.202.203.202' on asterisk 3 it accepts the call 
from asterisk 1 it's not rejected anymore, but of course i wont be able 
to make calls from asterisk unless i defined another peer just for that.
and also, inbound calls will all go thru asterisk 1.

is there a setting on iaxdomain where i can send the fromdomain just 
like in sip.conf?

thank you

regards,
nhadie