[asterisk-users] Back-to-back asterisk PRI issue

[Tilghman Lesher]

On Friday 25 March 2011 14:40:40 satish patel wrote:
> Following is my scenario to connect back to back PRI of two asterisk
> server. PRI cards are Sangoma A102D
> 
> [Asterisk1]------------[PRI]-Cross Cable---------[Asterisk2]
> 
> Asterisk1
> 
> ; Span 1 (MASTER)
> switchtype = national ; commonly referred to as NI2
> context = from-pstn
> group = 0,24
> echocancel = yes
> signalling = pri_net
> channel => 1-23
> 
> 
> Asterisk2
> 
> ; Span 1
> switchtype = national ; commonly referred to as NI2
> context = from-pstn
> group = 0,24
> echocancel = yes
> signalling = pri_cpe
> channel => 1-23

Here's one confusing part.  You're saying that calls that come from the
master to the slave end up in context from-pstn (on the slave), but calls
from the slave to the master ALSO end up in from-pstn (on the master).
Seems like one of them should be "from-internal" or the like.  I'm sure
some of your problem emanate from these settings.

> satish-desktop*CLI>
> [Mar 25 15:40:19] WARNING[4519]: app_dial.c:2039 dial_exec_full: Unable
> to create channel of type 'DAHDI' (cause 34 - Circuit/channel
> congestion)

Check the other side for error messages.

> [Mar 25 15:40:19] WARNING[4519]: acl.c:698 ast_ouraddrfor:
> Cannot connect [Mar 25 15:40:19] WARNING[4519]: chan_sip.c:3115
> __sip_xmit: sip_xmit of 0x14249d0 (len 763) to 0.0.29.103:5060 returned
> -1: Invalid argument [Mar 25 15:40:19] WARNING[4371]: chan_sip.c:3115
> __sip_xmit: sip_xmit of 0x14249d0 (len 763) to 0.0.29.103:5060 returned
> -1: Invalid argument

This problem is due to a misconfiguration.  Asterisk cannot handle the local
network being addressed as the 0.0.0.0 network.  You need to use the full
local address.

-- 
Tilghman