[Asterisk-Users] RE: IAX Incoming/Outgoing

[John Joseph]

--- JR Richardson <jr.richardson at cox.net> wrote:
> You certainly can have in/out trunks for each and
> work fine plus you can get
> more granular with security.
> 
> If all these boxes are on the same subnet and secure
> from a public network,
> there is really no reason to have an IAX [context]
> for each outbound/inbound
> session between the servers, just use one [context]
> common on all servers.  
> 

Hi JR 
    Thanks for the mail ,  I am trying out Asterisk 
and learning it , U mentioned that if all the tree
boxes are on the same subnet , there is no need for an
IAX [ context] for each outbound/inbound sessions
between the servers 

If there is a situation , in which they three asterisk
box are in different locations / with separate  subnet
, How will the it be 
                      Thanks 
                            Joseph John 





> Example iax.conf all PBX's
> 
> [iaxtrunk] (my internal iax trunk)
> type=friend 
> auth=md5
> secret=1234   
> host=dynamic
> context=incomingiax
> disallow=all
> allow=ulaw
> trunk=yes
> 
> 
> extensions.conf all PBX's
> 
> [incomingiax]
> Include => local (or whatever contexts the incoming
> iax trunks need access
> to)
> 
> 
> Now routing call between them is a whole other
> topic, several ways to
> accomplish this but it is all dial plan related at
> this point.  The only
> thing we accomplished so far is allowing all 3 PBX's
> trunk access to each
> other over a common [context] group.  This is good,
> as you add PBX4, PBX5,
> you just add this common [context] in iax.conf in
> the new servers without
> the need of updating pbx1,2&3.
> 
> Routing example extensions.conf 
> 
> [internal]
> ;To reach internal extensions on pbx1 (put this in
> pbx 2&3)
> Exten =>
>
1XXX,1,Dial(IAX2/iaxtrunk:1234 at XXX.187.142.203/${EXTEN})
> 
> ;To reach internal extensions on pbx2 (put this in
> pbx 1&3)
> Exten =>
>
2XXX,1,Dial(IAX2/iaxtrunk:1234 at XXX.187.142.204/${EXTEN})
> 
> ;To reach internal extensions on pbx3 (put this in
> pbx 1&2)
> Exten =>
>
3XXX,1,Dial(IAX2/iaxtrunk:1234 at XXX.187.142.234/${EXTEN})
> 
> 
> You could also specify each PBX in the [globals]
> context
> Example
> 
> [globals]
> 
> TRUNKPBX1 => IAX2/iaxtrunk:1234 at XXX.187.142.203
> TRUNKPBX2 => IAX2/iaxtrunk:1234 at XXX.187.142.204
> TRUNKPBX3 => IAX2/iaxtrunk:1234 at XXX.187.142.234
> 
> So your routing extension would look like this:
> 
> Exten => 1XXX,1,Dial(${TRUNKPBX1}/${EXTEN})
> Exten => 2XXX,1,Dial(${TRUNKPBX2}/${EXTEN})
> Exten => 3XXX,1,Dial(${TRUNKPBX3}/${EXTEN})
> 
> 
> Hope this helps.
> 
> JR
> 
> 
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