Dundi I can't call to pstn

Hi Friends
I am trying to configurer dundi with freepbx
I have two servers asterisk freepbx Servidor1( extension 1XXX y Servidor2 extensions 6XXX). server1 has a siptrunk with A PBX IP hipath4000 siemens. This link is ok between asterisk and Siemens pbx.
Between server1 and server2, works iax2 with dundi. I can dial between server1 and server2 without problem.
I can call from Siemens pbx to server1 1XXX and Server2 6XXX, I can call from Server1 1XXX to Siemens 7XXX, I can call between server1 and server2, but I can’t call from server2 6XXX to 7XXX to Siemens.
The siptrunk from server1 to Siemens was made by graphical tools freepbx

Really, I’ll apreciate some help
("With A Little Help From My Friends ")

The files configuration:
iax_custom.conf, extensions.conf, dundi.conf, extensions_custom.conf.

information about servers:
Servidor 1: MAC address: 00:14:D1:16:F0:48
IP address: 172.19.45.9

Servidor 2: MAC address: 00:30:05:98:ED:65
IP address: 172.19.45.10

iax_custom.conf:

Configuracion en Servidor1:
[dundi]
type=user
dbsecret=dundi/secret
context=ext-local
disallow=all
allow=ulaw

Configuracion en el Servidor2:
[dundi]
type=user
dbsecret=dundi/secret
context=ext-local
disallow=all
allow=ulaw

extensions.conf

–En ambos, en el bloque from-internal se tiene:

[from-internal]
include => from-internal-xfer
include => dundi-priv-lookup
;include => bad-number

dundi.conf

Servidor1:

[general]
department=SERVER01
organization=Banco
locality=Caracas
stateprov=MI
country=VE
bindaddr=0.0.0.0
port=4520
entityid=00:14:D1:16:F0:48
ttl=12
autokill=yes

[mappings]
priv => dundi-priv-canonical,0,IAX2,dundi:${SECRET}@172.19.45.9/${NUMBER},nopartial
priv => dundi-priv-customers,100,IAX2,dundi:${SECRET}@172.19.45.9/${NUMBER},nopartial
priv => dundi-priv-via-pstn,400,IAX2,dundi:${SECRET}@172.19.45.9/${NUMBER},nopartial

[00:30:05:98:ED:65]
model = symmetric
host = 172.19.45.10
inkey = SERVERS-DUNDI
outkey = SERVERS-DUNDI
include = priv
permit = priv
qualify = yes
order = primary

Servidor2:

[general]
department=SERVER02
organization=Banco
locality=Caracas
stateprov=MI
country=VE
bindaddr=0.0.0.0
port=4520
entityid=00:30:05:98:ED:65
ttl=12
autokill=yes

[mappings]
priv => dundi-priv-canonical,0,IAX2,dundi:${SECRET}@172.19.45.10/${NUMBER},nopartial
priv => dundi-priv-customers,100,IAX2,dundi:${SECRET}@172.19.45.10/${NUMBER},nopartial
priv => dundi-priv-via-pstn,400,IAX2,dundi:${SECRET}@172.19.45.10/${NUMBER},nopartial
[00:14:D1:16:F0:48]
model = symmetric
host = 172.19.45.9
inkey = SERVERS-DUNDI
outkey = SERVERS-DUNDI
include = priv
permit = priv
qualify = yes
order = primary

extensions_custom.conf

Servidor1 y 2 por igual:

[dundi-priv-canonical]
include => ext-local
include => ext-queues

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

[dundi-priv-lookup]
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]
exten => s,1,Goto(${ARG1},1)
switch => DUNDi/priv