This is all you should need to setup DUNDi between two boxes.. you can
add more boxes to your network in a similar way. :P

On both boxes in your extensions.conf:

; Private DUNDi network
[dundi-priv-canonical]
; Direct numbers

[dundi-priv-customers]
; If you are an ITSP or Reseller, list your customers here.

[dundi-priv-via-pstn]
; If you are freely delivering calls to the PSTN, list them here

[dundi-priv-local]
include => dundi-priv-canonical
include => dundi-priv-customers
include => dundi-priv-via-pstn

[dundi-priv-switch]
; Just a wrapper for the switch
switch => DUNDi/priv

[dundi-priv-lookup]
include => dundi-priv-local
include => dundi-priv-switch

[macro-dundi-priv]
exten => s,1,Goto(${ARG1},1)
include => dundi-priv-lookup


iax.conf on both boxes:

[priv]
type=user
dbsecret=dundi/secret
context=dundi-priv-local

dundi.conf on both boxes under [mappings]:

priv => dundi-priv-canonical,0,IAX2,priv:${SECRET}@${IPADDR}/${NUMBER},nopartial
priv => dundi-priv-customers,100,IAX2,priv:${SECRET}@${IPADDR}/${NUMBER},nopartial
priv => dundi-priv-via-pstn,400,IAX2,priv:${SECRET}@${IPADDR}/${NUMBER},nopartial


now on each box cd /var/lib/asterisk/keys

astgenkey -n [BOXNAMEHERE]

Press enter do not put a password on the keys unless you want to init
keys every time you start asterisk.

Now put exchange public keys between the boxes.



Box A dundi.conf:

[DE:AD:BE:EF:DE:AD]   <-- EID/MAC from BOX B
model = symmetric
host = boxa.domain.com
inkey = BOXB   <- BOX B's public key
outkey = BOXA  <- BOX A's private key
include = priv
permit = priv
qualify = yes
order = primary

Box B dundi.conf:

[BE:EF:DE:AD:BE:EF]  <-- EID/MAC from BOX A
model = symmetric
host = boxb.domain.com
inkey = BOXA   <- BOX A's public key
outkey = BOXB  <- BOX B's private key
include = priv
permit = priv
qualify = yes
order = primary

Now you can do this:

exten => _91NXXNXXXXXX,1,Macro(dundi-priv,${EXTEN:1})
exten => _91NXXNXXXXXX,2,Dial(Zap/g1/${EXTEN:1})

And find numbers in your enterprise DUNDi network.

These same things apply to the e164 DUNDi network too.

bkw