Может уже было здесь такое, но вроде покопавшись не нашел :(

Сценарий:
Софтфон звонит на астериск, астериск посылает звонок на 2600, который должен терминировать его, либо по H323 либо по SIP.

Астериск в упор не замечает СИП на циске, недоступен:
по 323 звонок доходит до циски

конфиг циски:

Router#sh run
Building configuration...

Current configuration : 4458 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
voice-card 1
!
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1
ip dhcp excluded-address 192.168.2.1
ip dhcp excluded-address 192.168.3.1
ip dhcp excluded-address 192.168.4.1
!
ip dhcp pool Administration
   network 192.168.2.0 255.255.255.0
   dns-server 8.8.8.8
   default-router 192.168.2.1
!
ip dhcp pool Formation
   network 192.168.3.0 255.255.255.0
   default-router 192.168.3.1
   dns-server 8.8.8.8
!
ip dhcp pool Bibliotheque
   network 192.168.4.0 255.255.255.0
   dns-server 8.8.8.8
   default-router 192.168.4.1
!
!
no ip domain lookup
!
!
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
h323
sip
!
!
!
voice class codec 1
codec preference 1 g729r8
codec preference 2 g723r63
codec preference 3 g723r53
codec preference 4 g723ar53
codec preference 5 g729br8
!
!
!
!
!
!
!
!
!
!
!
!
!
controller E1 1/0
framing NO-CRC4
clock source line primary
ds0-group 0 timeslots 1-5 type r2-digital r2-compelled
!
controller E1 1/1
shutdown
!
!
class-map match-any Voice
match protocol rtp
match protocol mgcp
!
!
policy-map qos
class Voice
  bandwidth percent 70
class class-default
  fair-queue
  random-detect
!
!
!
!
interface FastEthernet0/0
description Provider
ip address Real IP 1 255.255.255.252
ip nat outside
duplex auto
speed auto
service-policy output qos
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1.1
description Provider 1
encapsulation dot1Q 1 native
ip address 192.168.1.1 255.255.255.0
ip nat inside
!
interface FastEthernet0/1.10
description Reseau Administration
encapsulation dot1Q 10
ip address 192.168.2.1 255.255.255.0
ip nat inside
!
interface FastEthernet0/1.20
description Reseau Formation
encapsulation dot1Q 20
ip address 192.168.3.1 255.255.255.0
ip nat inside
!
interface FastEthernet0/1.30
description Reseau Bibliotheque
encapsulation dot1Q 30
ip address 192.168.4.1 255.255.255.0
ip nat inside
!
router rip
version 2
network Real Network
network 192.168.1.0
network 192.168.2.0
network 192.168.3.0
network 192.168.4.0
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Real IP 2
!
no ip http server
no ip http secure-server
ip nat pool VOIP Real IP 1 Real IP 1 prefix-length 30 type rotary
ip nat inside source list 1 interface FastEthernet0/0 overload
ip nat inside source static tcp 192.168.1.5 23 Real IP 1 5000 extendable
ip nat inside source static tcp 192.168.1.5 5060 Real IP 1 5001 extendable
ip nat inside source static udp 192.168.1.5 5060 Real IP 1 5001 extendable
ip nat inside source static tcp 192.168.1.5 21 Real IP 1 5002 extendable
ip nat inside source static tcp 192.168.1.5 69 Real IP 1 5003 extendable
ip nat inside source static tcp 192.168.1.5 20 Real IP 1 5004 extendable
ip nat inside source static tcp 192.168.1.5 80 Real IP 1 5005 extendable
ip nat inside source static tcp 192.168.1.5 53 Real IP 1 5006 extendable
ip nat inside source static tcp 192.168.1.5 22 Real IP 1 5007 extendable
ip nat inside source static tcp 192.168.1.2 23 Real IP 1 6000 extendable
ip nat inside destination list 100 pool VOIP
!
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 1 permit 192.168.2.0 0.0.0.255
access-list 1 permit 192.168.3.0 0.0.0.255
access-list 1 permit 192.168.4.0 0.0.0.255
access-list 100 permit udp 192.168.1.0 0.0.0.255 range 20000 30000 any
!
!
control-plane
!
!
!
voice-port 1/0:0
echo-cancel coverage 32
bearer-cap Speech
!
!
!
!
!
dial-peer voice 100 pots
description To Operator
destination-pattern 11112222T
direct-inward-dial
port 1/0:0
!
dial-peer voice 200 pots
description To Operator
shutdown
destination-pattern 11112222T
!
dial-peer voice 555 voip
destination-pattern 11112222T
session protocol sipv2
session target sip-server
!
sip-ua
registrar ipv4:Asterisk IP expires 3600
registrar ipv4:Asterisk IP expires 3600 secondary
sip-server ipv4:Asterisk IP:5060

Заранее огромное спасибо всем