Данная схема представляет простой "проброс" потока ISDN PRI через сеть IP, для её реализации использовались следующие устройства:

Cisco Voice Gateway 200 c модулем NM-HDV-1E1-30E

Cisco 3660 c модулем NM-HDV-1E1-30E

Версии IOS`а на обоих устройствах были 12.1 IP PLUS.

В качестве ISDN-switch`a были использованы ATC Definity (R9csi BSC) с платами E1-интерфейса (TN2464)

============================================================

VG200#sh run
Building configuration...

Current configuration : 
!
version 12.1
no service single-slot-reload-enable
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname VG200
!
no logging buffered
logging rate-limit console 10 except errors
!
memory-size iomem 25
voice-card 1
!
ip subnet-zero
no ip finger
!
isdn switch-type primary-net5
!
! "настройка контроллера Е1"
controller E1 1/0          
 pri-group timeslots 1,16   	!"количество тайм-слотов"
!
!
interface FastEthernet0/0
 ip address 192.168.0.2 255.255.255.0
 duplex auto
 speed auto
!
! "настройка ISDN D-канала"
interface Serial1/0:15
 no ip address
 no logging event link-status
 isdn switch-type primary-net5
 isdn incoming-voice voice
 isdn send-alerting
 isdn sending-complete
 no cdp enable
!
ip classless
no ip http server
!
!
voice-port 1/0:15
!
! "настройка рапределения PSTN звонков"
dial-peer voice 2 pots			
 destination-pattern 5001
 direct-inward-dial
 port 1/0:15
 forward-digits all
!
dial-peer voice 3 voip	! "настройка рапределения VoIP звонков"
destination-pattern 5000
 session target ipv4:192.168.0.1
 codec g711alaw			! "используемый кодек речи"
!
!
line con 0
 exec-timeout 0 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 login
!
end


VG200#sh ver
Cisco Internetwork Operating System Software 
IOS (tm) VG200 Software (VG200-I6S-M), Version 12.1(5)XM, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC:Home:SW:IOS:Specials for info
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Tue 19-Dec-00 12:49 by beliu
Image text-base: 0x80008088, data-base: 0x80822968

ROM: System Bootstrap, Version 12.1(1r) [phanguye 1r], RELEASE SOFTWARE (fc1)
ROM: VG200 Software (VG200-I6S-M), Version 12.1(5)XM, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

VG200 uptime is 1 day, 20 hours, 10 minutes
System returned to ROM by power-on
System image file is "flash:vg200-i6s-mz.121-5.XM.bin"

cisco VG200 (MPC860) processor (revision 0x102) with 24576K/8192K bytes of memory.
Processor board ID JAB0430039Y (0)
M860 processor: part number 0, mask 49
Channelized E1, Version 1.0.
Primary Rate ISDN software, Version 1.1.
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 Channelized E1/PRI port(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

r3660#sh run
Building configuration...

Current configuration : 
!
version 12.1
no parser cache
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r3660
!
no logging buffered
logging rate-limit console 10 except errors
!
!
!
voice-card 2
 dspfarm
!
ip subnet-zero
!
!         
no ip finger
!
isdn switch-type primary-net5
!
! "настройка контроллера Е1"
controller E1 2/0						
 pri-group timeslots 1,16					
!
interface FastEthernet0/0
 duplex auto
 speed auto
!
! "настройка ISDN D-канала"
interface Serial2/0:15						
 no ip address
 no logging event link-status
 isdn switch-type primary-net5
 isdn incoming-voice voice
 isdn T310 60000
 isdn send-alerting
 isdn sending-complete
 no cdp enable
!
interface FastEthernet3/0
 ip address 192.168.0.1 255.255.255.0
 duplex auto
 speed auto
!
ip classless
no ip http server
!
snmp-server packetsize 4096
!
voice-port 2/0:15
!
dial-peer cor custom
!
!
! "настройка рапределения PSTN звонков"
dial-peer voice 1 pots					
 destination-pattern 5000
 direct-inward-dial
 port 2/0:15
 forward-digits all
!
! "настройка рапределения VoIP звонков"
dial-peer voice 2 voip
 destination-pattern 5001
 session target ipv4:192.168.0.2
 codec g711alaw	!"используемый кодек речи"
!
!         
line con 0
 exec-timeout 0 0
 logging synchronous
 transport input none
line aux 0
line vty 0 4
 login
!
end


r3660#sh ver
Cisco Internetwork Operating System Software 
IOS (tm) 3600 Software (C3660-IS-M), Version 12.1(5)XM3, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
TAC:Home:SW:IOS:Specials for info
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Wed 02-May-01 05:20 by liha
Image text-base: 0x60008960, data-base: 0x61260000

ROM: System Bootstrap, Version 12.0(6r)T, RELEASE SOFTWARE (fc1)
ROM: 3600 Software (C3660-I-M), Version 12.1(5)T5,  RELEASE SOFTWARE (fc1)

r3660 uptime is 1 day, 2 hours, 12 minutes
System returned to ROM by power-on
System image file is "tftp://x.x.x.x/c3660-is-mz.121-5.XM3.bin"

cisco c3660 (R527x) processor (revision C0) with 55296K/10240K bytes of memory.
Processor board ID JAB0520814S
R527x CPU at 225Mhz, Implementation 40, Rev 10.0, 2048KB L2 Cache
Channelized E1, Version 1.0.
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
Primary Rate ISDN software, Version 1.1.
          

3660 Chassis type: ENTERPRISE
3 FastEthernet/IEEE 802.3 interface(s)
15 Serial network interface(s)
4 Channelized E1/PRI port(s)
DRAM configuration is 64 bits wide with parity disabled.
125K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102