asterisk users - Oct 2004 - IAX2 trunk mode not working

Hi all - We have several servers working just fine with IAX2 w/o trunk mode.

 

We are trying to setup trunk mode to save bandwidth, but we can not achieve
the savings with our current configuration (see below).

 

When we place a call between * boxes A & B it works fine, but the command
'iax2 trunk debug' shows no activity for the trunk mode (1 peer, 0
calls).

 

Anyone who has been able to configure IAX2 trunks can help?

 

Server A is a Dual Xeon 2.8 Ghz running a CVS from 2/16/04 on Redhat 9.0

Server B is a Pentium III 900 MHz running a CVS from 8/25/04 on Redhat 9.0

 

Both servers have G729 installed and working. Here is a pseudo-diagram/flow:

 

PSTN ---{PRI/TE410P}--->  Server A ---{IAX2}---> Server B ---> Music On
Hold

 

The connection between A & B is a 128Kbps dedicated IP channel and we expect
to be able to handle up to 10 calls. Right now 5 calls is the limit with
G729. After that the voice is choppy.

 

Thanks

 

Javier

 

 

=========================================================================
Server A connected to the PSTN (PRI/E1 using a TE410P)  =>
IP:XXX.XXX.XXX.XXX

 

===========IAX.conf=========
 

[pbxserverA]

type= friend

trunk=yes

username=ServerA01

auth=plaintext

secret=IAXServerA01

context=LDN

host=YYY.YYY.YYY.YYY

port=5036

qualify=yes

 

==========Extensions.conf=========
 

[default]

 

exten=>
5252525,1,Dial(IAX2/pbxserverB:IAXServerB01@YYY.YYY.YYY.YYY/${EXTEN})

 

[LDN]

exten => _021XXXXXXX,1,Dial(Zap/g2/09${EXTEN:2})

exten => _02XXXXXXXX,1,Dial(Zap/g2/07${EXTEN:2})

 

----------------------------------

 

Server B  IP=> YYY.YYY.YYY.YYY

 

========IAX.conf ========
 

[pbxserverB]

type=friend

trunk=yes               ; Use IAX2 trunking with this host

username=ServerB01

auth=plaintext

secret=IAXServerB01

context=default

host=XXX.XXX.XXX.XXX

port=5036

qualify=yes

 

======== Extensions.conf =========
 

[outgoing]

 

exten =>
_902XXXXXXXX,2,Dial(IAX2/pbxserverA:IAXServerA01@XXX.XXX.XXX.XXX/${EXTEN:1}@

LDN)

 

 

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Javier Pinzon wrote:
> Hi all - We have several servers working just fine with IAX2 w/o trunk
mode.
> 
>  
> 
> We are trying to setup trunk mode to save bandwidth, but we can not 
> achieve the savings with our current configuration (see below).
> 
>  
> 
> When we place a call between * boxes A & B it works fine, but the 
> command ?iax2 trunk debug? shows no activity for the trunk mode (1 peer, 
> 0 calls).
> 
>  
> 
> Anyone who has been able to configure IAX2 trunks can help?
> 
You need a timing device in both machines to do trunking.  See some of 
my earlier posts regarding timing issues, or check the wiki.

--
Kristian Kielhofner