[asterisk-users] DUNDi with two servers

[arkda]

Hi,

I'm having difficulties with using DUNDi between two servers. If it were
three I think I could control looping by limiting TTL, but with two I'm not
sure how to prevent a loop causing bad things to happen. I've tried ttl=1
but things still blow up.

The DUNDi configurations are pretty simple and work just fine in both
directions as long as only one of them is using the switch => DUNDi/context.
dundi lookup <number>@dundified works great as well as test calls.

What is the proper method of handling DUNDi between only two servers? Should
I be using a dummy context on one server to handle this?

I'm listing the relevant files below for only one server for brevities sake.

-----------------------------------
dundi.conf

[general]
department=Test Lab
organization=My Test lab
locality=Anywhere
stateprov=CA
country=US
email=email at email.com
phone=+5555555555
entityid=00:11:22:33:44:55
cachetime=5
ttl=1
autokill=yes

[mappings]
dundified => internal,0,SIP,${NUMBER}@server1.domain.com<NUMBER%7D at server1.domain.com>
,nopartial

[55:44:33:22:11:00]
model=symmetric
host=server2.domain.com
inkey=dundikey
outkey=dundikey
include=dundified
permit=dundified
qualify=yes
order=primary

-----------------------------------
extensions.conf

[general]
static = yes
writeprotect = no
clearglobalvars = no

[globals]

[default]
include => internal
include => parkedcalls

[internal]
include => external
include => parkedcalls
switch => DUNDi/dundified

exten => 300,1,Dial(SIP/300)
exten => 300,n,Hangup()
exten => 5551234567,1,Goto(300,1)

exten => 301,1,Dial(SIP/301)
exten => 301,n,Hangup()
exten => 8885551212,1,Goto(301,1)

exten => _NXXNXXXXXX,1,Dial({$EXTEN}@voipprovider)
exten => _NXXNXXXXXX,n,Hangup()

[external]
exten => 5551234567,1,Goto(internal,300,1)

-----------------------------------
sip.conf

[dundified]
type=friend
dbsecret=dundi/secret
context=internal

[voipprovider]
type=friend
host=voipprovider.web
dtmfmode=rfc2833
insecure=port,invite
disallow=all
allow=g729
context=external

[300]
type=peer
callerid=300
username=300
secret=secret
host=dynamic
context=internal
mailbox=300 at default
notifyringing=yes
notifyhold=yes
limitonpeers=yes
call-limit=2

[301]
type=peer
callerid=301
username=301
secret=secret
host=dynamic
context=internal
mailbox=301 at default
notifyringing=yes
notifyhold=yes
limitonpeers=yes
call-limit=2

Thanks in advance!
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