[asterisk-users] error dialing a SIP user. chan_sip.c:1994 create_addr: No such host

[Erick Perez]

The following strange conditions is happening while I try to dial a
SIP user from another SIp user.
SIP to Zap dialing is fine, as all 4 users can call PSTN.
I'm using Asterisk SVN-branch-1.2-r51359M

Example: extension 3210 calls extension 3213. They are all registered properly:
chrom01*CLI> sip show peers
Name/username              Host            Dyn Nat ACL Port     Status
3213/3213                  192.168.0.112    D          5060     Unmonitored
3212/3212                  192.168.0.112    D          5060     Unmonitored
3211/3211                  192.168.0.112    D          5060     Unmonitored
3210/3210                  192.168.0.112    D          5060     Unmonitored
4 sip peers [4 online , 0 offline]

    -- Executing Ringing("SIP/3210-084eaa80", "") in new stack
    -- Executing AGI("SIP/3210-084eaa80",
"agi://127.0.0.1:4577/call_log") in new stack
    -- AGI Script agi://127.0.0.1:4577/call_log completed, returning 0
    -- Executing Dial("SIP/3210-084eaa80", "SIP/3213)|30|to") in new stack
Feb  3 12:42:25 WARNING[10368]: chan_sip.c:1994 create_addr: No such host: 3213)
Feb  3 12:42:25 NOTICE[10368]: app_dial.c:1056 dial_exec_full: Unable
to create channel of type 'SIP' (cause 3 - No route to destination)
  == Everyone is busy/congested at this time (1:0/0/1)

**sip.conf***
**************
i have 4 extensions, 3210,3211,3212 and 3213. they are all defined in
sip.conf with the following parameters (just change 3212 for the next
extension and so on).
[3212]
username=3212
secret=3212
type=friend
context=default
nat=no
canreinvite=no
mailbox=3212 at default
disallow=all
allow=ulaw
host=dynamic
language=en
dtmfmode=inband

My dial plan is like this:
The AGI is doing nothing more than simple call logging to MySQL
**extensions.conf**
**********************
exten => _321[0123],1,Ringing
exten => _321[0123],n,AGI(agi://127.0.0.1:4577/call_log)
exten => _321[0123],n,Dial(SIP/${EXTEN}),30,to)
exten => _321[0123],n,Voicemail,u${EXTEN}
exten => _321[0123],n,Hangup

comments?

-- 
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Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama, Republica de Panama
Cel Panama. +(507) 6694-4780
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