>Конфиг посмотреть можно? Часть конфига:
version 12.4
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime localtime
service timestamps log datetime localtime
no service password-encryption
service sequence-numbers
no service dhcp
!
hostname voip-router
!
boot-start-marker
boot system flash c2800nm-advipservicesk9-mz.124-8.bin
boot-end-marker
!
card type e1 0 0
isdn switch-type primary-net5
!
voice-card 0
codec complexity medium
dspfarm
dsp services dspfarm
!
!
voice call send-alert
voice rtp send-recv
!
voice service pots
!
voice service voip
sip
!
!
voice class codec 1
codec preference 1 g729br8
codec preference 2 g711alaw
codec preference 3 g711ulaw
controller E1 0/0/0
framing NO-CRC4
pri-group timeslots 1-8,16
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn overlap-receiving
isdn fast-rollover-delay 5
isdn incoming-voice voice
isdn T310 60000
isdn send-alerting
isdn sending-complete
no cdp enable
!
voice-port 0/0/0:15
cptone RU
description --- To PSTN
!
dial-peer voice 174652 voip
description 174652
huntstop
destination-pattern 174652
progress_ind setup enable 3
no modem passthrough
session protocol sipv2
session target ipv4:192.168.49.103:5060
incoming called-number .T
codec g711ulaw
no vad
!
dial-peer voice 2 pots
huntstop
destination-pattern .T
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 1
progress_ind connect enable 1
progress_ind disconnect enable 8
no digit-strip
direct-inward-dial
port 0/0/0:15