[asterisk-users] Connecting Multiple Asterisk instances getting "Unable to create channel of type 'SIP'"

[Alec Davis]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Sandeep Raju
> Sent: Sunday, 5 May 2013 8:34 p.m.
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Connecting Multiple Asterisk 
> instances getting "Unable to create channel of type 'SIP'"
> 
<snip>
> 
> When i make a call to extension 998 in using user as venu, 
> here is the output i get..
> 
> http://paste.kde.org/737894
> 
> The problem is that, I'm getting the
> Unable to create channel of type 'SIP' (cause 20 - Subscriber absent)
> 
> 
> but I want to make a call to vijay.. can anyone please let me 
> know where I am going wrong?
> 

The clue is 
21.    -- Executing [999 at incoming:2] Dial("SIP/serverA-00000004",
"SIP/vijay at serverB") in new stack
24. getaddrinfo("serverB", "(null)", ...): Name or service not known
25. No such host: serverB

I believe extension 999 in server B is wrong.
It should be;

# extensions.conf in serverB
[incoming]
exten => 999,1,Answer()
exten => 999,n,Dial(SIP/vijay)
exten => 999,n,HangUp()

Alec