[Asterisk-Users] ZapRAS from both sides

[Ulexus]

Okay, it turns out I was being stupid.  ZapRAS does not automatically 
answer the channel, so, the PRI_NET side below should have read:

PRI_NET side
--------------
extensions.conf:
[incoming]
   exten => 6999,1,Answer
   exten => 
6999,2,ZapRas(debug|64000|noauth|multilink|netmask|255.255.255.0|192.168.10.2:192.168.10.1)

I have added this as a note to the Wiki: 
http://www.voip-info.org/tiki-index.php?page=Asterisk+cmd+ZapRAS


Ulexus wrote:
> I am flailing around here trying to make ZapRAS function reliably with 
> an asterisk box on both sides.  My interpretation of the documentation 
> and the wiki is as follows:
> 
> PRI_CPE side
> ---------------
> zapata.conf:
>   minunused=2
>   minidle=1
>   idledial=6999
>   idleext=6999 at idle
> 
> extensions.conf:
> [idle]
> exten => 6999,1,ZapRas(debug|64000|noauth|multilink|
> netmask|255.255.255.0|192.168.10.1:192.168.10.2)
> 
> 
> PRI_NET side
> --------------
> extensions.conf:
> [incoming]
>   exten => 6999,1,ZapRas(debug|64000|noauth|multilink|
> netmask|255.255.255.0|192.168.10.2:192.168.10.1)
> 
> 
> This would seem to be reasonable:  The cpe side dials out 6999 on the 
> PRI, which goes to 6999 on the net side, which starts pppd on the net 
> side.  Then, cpe side sends the call to 6999 at idle, where pppd is started 
> on the cpe side.
> 
> The only problem is, this doesn't work.  The cpe side never starts pppd. 
>    I can see the net side starting it for every channel that the cpe 
> calls, but it eventually times out, receiving no packets from the cpe side.
> 
> This does not seem to be a fluke of configuration, since, if I change 
> nothing but the side with the idledial,minused,minidle,idleext stuff, 
> the same things happens in reverse.
> 
> Even more frustratingly, if I configure both sides identically (except 
> for the IP addresses reversed, of course), it sometimes works.  Most of 
> the time in this scenario, though, I get what appears to be a race 
> condition (as I would expect), and the D channel goes up and down, 
> ZapRAS spews calls everywhere, and nothing connects.  However, this is 
> the only configuration I have yet tried that at least _sometimes_ works.
> 
> 
> Can anyone shed any light on this process?
> 
> Thanks,
> 
> -- 
> Ulexus
> ulexus at lifelabs.net
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