asterisk users - Aug 2010 - Can ChanIsAvail return status from sip uri using router ip

hello,
Although my previous posts in this forum have not received satisfying
answers, here is another question from me.

my question is can i use ChanIsAvail function to get the status of a user in
the format SPI/user-id if i provide user in sip uri like this

ChanIsAvail(SIP/user at 153.18.x.x:5062)

calling user with this sip uri works fine.

I once tried but status returned was "unknow host 153.18.x.x". what is
wrong
here?

thanks
Nasir Javaid
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Hi!
> Although my previous posts in this forum have not received satisfying
> answers, here is another question from me. 
You might want to consider to reqest a refund. ;->
> my question is can i use ChanIsAvail function to get the status of a user
> in the format SPI/user-id if i provide user in sip uri like this 
> 
> ChanIsAvail(SIP/user at 153.18.x.x:5062) 
> 
> calling user with this sip uri works fine. 
That will not work, you need a known peer combined with qualify= for a 
useful response. You can read details on the Wiki:

http://www.voip-info.org/wiki/view/Asterisk+cmd+ChanIsAvail

Philipp