"прозрачный" канал ТЧ через Cisco с VIC-2E/M

2. Конфигурация для ТЧ:
CISCO 2811 (A)
interface FastEthernet0/0
ip address 192.168.0.1 255.255.255.0
!
voice-port 0/2/0
operation 4-wire
type 2
timeouts call-disconnect 3
connection trunk 1111111
!
dial-peer voice 1111111 voip
destination-pattern 1111111
session target ipv4:192.168.0.2
!
dial-peer voice 2222 pots
destination-pattern 2222
port 0/2/0

CISCO 2811 (B)

interface FasrEthernet0/1
ip address 192.168.0.2 255.255.255.0
!
voice-port 0/1/0
operation 4-wire
type 2
timeouts call-disconnect 3
connection trunk 2222 answer
!
dial-peer voice 2222 voip
destination-pattern 2222
session target ipv4:192.168.0.1
!
dial-peer voice 1111111 pots
destination-pattern 1111111
port 0/1/0

Взято с http://www.zelax.ru/forum/viewtopic.php?f=3&t=1187#p2713