I realize that the heyday of DUNDi was about 2008, and that there's less and
less information online about it and lots of people don't use it anymore and
use static IAX trunks instead. But we have 53 asterisk phone systems connecting
our locations, and so creating static IAX trunks (even with a regional hub and
spoke model) is a significant undertaking.
We've had issues with DUNDi peers disconnecting in the past and with Elastix
used to have to do an amportal restart on the PBX to have it reconnect again.
But the new issue that we're seeing is that the peer refuses to reconnect
again, even after changing the long secret key in dundi_general, the MAC
address of the VM the PBX is running on, the IP of the PBX and recreating the
public/private keypair. The PBX that disconnected will not reconnect to any
DUNDi peers at all, even to a completely new VM that we stand up at the same
site on the same virtual switch on the same host. We are only trying to do
inter-site extension dialing, not routing external calling between sites using
DUNDi.
I'm also okay with giving up on DUNDi if anybody else has a less labour
intensive way of routing extension dialing between that many PBXes than a web
of static IAX trunks.
Here are the config files. I removed all the ; commented lines in dundi.conf to
save space.
Iax_custom.conf
[dundi]
type=user
dbsecret=dundi/secret
context=ext-local
disallow=all
allow=ulaw
allow=g726
dundi.conf
[general]
#include dundi_general_custom.conf
ttl=32
autokill=yes
[mappings]
#include dundi_mappings_custom.conf
#include dundi_peers_custom.conf
dundi_mappings.conf
priv => dundi-priv-canonical,0,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
priv => dundi-priv-customers,100,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
priv => dundi-priv-via-pstn,400,IAX2,dundi:${SECRET}@PBX_IP/${NUMBER},nopartial
dundi_general.conf
organization=
locality=
stateprov=
country=
email=
phone=
department=
secret=secret key
entityid=MAC address
dundi_peers.conf
[server A MAC]
model=symmetric
host=
inkey=
outkey=
his_status=connected
include=priv
permit=priv
qualify=yes
order=primary
[server B MAC]
model=symmetric
host=
inkey=
outkey=
his_status=connected
include=priv
permit=priv
qualify=yes
order=primary
extensions_custom.conf
[from-internal]
include => from-internal-noxfer
include => from-internal-xfer
include => dundi-priv-lookup
include => bad-number ; auto-generated
exten => h,1,Macro(hangupcall)
; ********************************************
; CONFIGURACION PARA DUNDi
[dundi-priv-canonical]
; Here we include the context that contains the extensions.
exten => _9999X,1,Macro(stdexten,${EXTEN})
;include => ext-local
; Here we include the context that contains the queues.
; include => ext-queues
[dundi-priv-customers]
; If you have customers (or resell services) we can list them here
[dundi-priv-via-pstn]
; Here we include the context with our trunk to the PSTN,
; if we want the other teams can use our trunks
;include => outbound-allroutes
[dundi-priv-local]
; In this context we unify the three contexts, we can use this as
; context of the trunks of dundi iax
include => dundi-priv-canonical
include => dundi-priv-customers
include => dundi-priv-via-pstn
[dundi-priv-lookup]
; This context is responsible for making the search for a number of dundi
; Before you do the search properly define our caller id.
; because if not we have a caller id as 'device<0000>'.
exten => _X.,1,Macro(user-callerid)
exten => _X.,n,Macro(dundi-priv,${EXTEN})
exten => _X.,n,GotoIf($['${DIALSTATUS}' = 'BUSY']?100)
exten => _X.,n,Goto(bad-number,${EXTEN},1)
exten => _X.,100,Playtones(congestion)
exten => _X.,101,Congestion(10)
[macro-dundi-priv]
; This is the macro is called from the context [dundi-priv-lookup]
; It also avoids having loops in the consultations dundi.
exten => s,1,Goto(${ARG1},1)
switch => DUNDi/priv
; ********************************************
Thank you,
Court Campbell
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