[Asterisk-Users] WANTED: Toll-Free gateways in Europe/Asia/Africa/South America

[John Todd]

>Looks like the list server is really lagging tonight.  I found out some
>more info so will just post it in a new email with the same subject.
>
>I added:  "search => freenum.org"   to enum.conf and got a match (SIP
>system) when doing the lookup !!!!  Maybe I overlooked that in the
>original instructions.
>
>Now will work on trying to get only IAX responses since SIP is rather
>problematic from behind the NAT router.  IAX should work fine.
>
>John, Thanks for the tips on debugging. It pointed me in the right direction.
>
>Robert

Robert -
   IAX as a protocol is completely dependent on the far-end gateway, 
and not on any specifications you can change.  All the gateways at 
the moment only support SIP; none support IAX or IAX2, though 
hopefully that will change since some of them are actually running 
Asterisk as the media gateway.

   As soon as they offer IAX in addition to SIP, then we'll also need 
to re-examine the way that Asterisk handles ENUM lookups since 
currently only one NAPTR is handed back to the dialplan.  For those 
nations that have multiple gateways or providers, I have put all the 
entries in a round-robin fashion so that the answers will be rotated 
by most standard DNS resolver libraries.  However, this quickly 
becomes unworkable with multiple responses with different protocols, 
and there is already a "preference" factor built into NAPTR records 
that should be accessible from the dialplan when an EnumLookup is 
returned.

   Anyone want to take a swing at it?  Otmar?  :-)

JT