Linea VoIP de UNE Telecomunicaciones en Asterisk 1.4

Pues nio encontré otro sitio donde poner mi pregunta, asi que lo hago acá.

Me dijeron que se puede, de hecho un amigo me configuró una troncal SIP con el número (247XXXX) que da UNE Telecomunicaciones pero aún siguiendo las indicaciones de él, no me funciona.

la configuracion es:

[une-troncal]
allow=g729&g723
authuser=toip247XXXX
canreinvite=no
disallow=all
fromdomain=une.net.co
fromuser=247XXXX
host=une.net.co
insecure=very
nat=yes
qualify=yes
secret=miclave
type=peer
username=toip247XXXX

El sip debug peer une-troncal dice:
perdon el larguero
Reliably Transmitting (NAT) to 200.13.225.243:5060:
OPTIONS sip:une.net.co SIP/2.0
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK4ffedb1e;rport
From: "DESCONOCIDO" ;tag=as44a36171
To:
Contact:
Call-ID: 1a4ea5ec629bb4b37772701c5d9b1475@201.233.132.56
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Thu, 22 Nov 2007 05:13:37 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0

---
Reliably Transmitting (NAT) to 200.13.225.243:5060:
OPTIONS sip:une.net.co SIP/2.0
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK27f94d1d;rport
From: "DESCONOCIDO" ;tag=as382b6b2d
To:
Contact:
Call-ID: 3235bc78125b94881e97f3802dc3d7f6@201.233.132.56
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Thu, 22 Nov 2007 05:13:38 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0

---
[Nov 22 00:13:38] NOTICE[22639]: chan_sip.c:7334 sip_reregister: -- Re-registration for 247XXXX@une.net.co
REGISTER 13 headers, 0 lines
Reliably Transmitting (NAT) to 200.13.225.243:5060:
REGISTER sip:une.net.co SIP/2.0
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK26f4114c;rport
From: ;tag=as2f8a1b31
To:
Call-ID: 7462a44a312602ff5cdd011f4f50c1c1@201.233.132.56
CSeq: 105 REGISTER
User-Agent: Asterisk PBX
Max-Forwards: 70
Authorization: Digest username="toip247XXXX", realm="une.net.co", algorithm=MD5, uri="sip:une.net.co", nonce="47450fee2e035de37f186867c59dadb22b74d69e", response="98c9cb2314c676c9a9037055fb7cf26b", opaque=""
Expires: 120
Contact:
Event: registration
Content-Length: 0

---
pbxmed*CLI>
<--- SIP read from 200.13.225.243:5060 --->
SIP/2.0 200 OK
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK26f4114c;rport=5060
From: ;tag=as2f8a1b31
To: ;tag=3aca033e7815a3cc695b9dd363586683.964e
Call-ID: 7462a44a312602ff5cdd011f4f50c1c1@201.233.132.56
CSeq: 105 REGISTER
Contact: ;q=0;expires=120
Content-Length: 0

<------------->
--- (8 headers 0 lines) ---
Scheduling destruction of SIP dialog '7462a44a312602ff5cdd011f4f50c1c1@201.233.132.56' in 32000 ms (Method: REGISTER)
[Nov 22 00:13:38] NOTICE[22639]: chan_sip.c:12372 handle_response_register: Outbound Registration: Expiry for une.net.co is 120 sec (Scheduling reregistration in 105 s)
Retransmitting #1 (NAT) to 200.13.225.243:5060:
OPTIONS sip:une.net.co SIP/2.0
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK4ffedb1e;rport
From: "DESCONOCIDO" ;tag=as44a36171
To:
Contact:
Call-ID: 1a4ea5ec629bb4b37772701c5d9b1475@201.233.132.56
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Thu, 22 Nov 2007 05:13:37 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0

---
Retransmitting #1 (NAT) to 200.13.225.243:5060:
OPTIONS sip:une.net.co SIP/2.0
Via: SIP/2.0/UDP 201.233.132.56:5060;branch=z9hG4bK27f94d1d;rport
From: "DESCONOCIDO" ;tag=as382b6b2d
To:
Contact:
Call-ID: 3235bc78125b94881e97f3802dc3d7f6@201.233.132.56
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Thu, 22 Nov 2007 05:13:38 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces
Content-Length: 0

La troncal dice que esta arriba y registrada, pero cuadno llamo, el * responde ocn que el numero esta fuera de sevicio

[Nov 22 00:57:36] NOTICE[22990]: chan_sip.c:15542 sip_poke_noanswer: Peer 'une-trunk' is now UNREACHABLE! Last qualify: 0

Alguien lo ha configurado con exito?. SI es así pueden echarme una mano mi cel es 315 838 8326,

Gracias