MS OCS and Avaya PBX interconnection with Cisco ISR

Configuration:
!
network-clock-participate wic 0
network-clock-select 1 E1 0/0/0
!
isdn switch-type primary-qsig
!
voice-card 0
no dspfarm
!
voice rtp send-recv
!
voice service voip
sip
bind control source-interface FastEthernet0/0
bind media source-interface FastEthernet0/0
session transport tcp
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
!
controller E1 0/0/0
pri-group timeslots 1-31
clock source line
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-qsig
isdn incoming-voice voice
no cdp enable
!
voice-port 0/0/0:15
compand-type u-law
cptone RU
!
dial-peer voice 7100 voip
destination-pattern 75..
voice-class codec 1
session protocol sipv2
session target ipv4:192.168.1.1
session transport tcp
dtmf-relay rtp-nte
no vad
!
dial-peer voice 1 pots
incoming called-number .T
direct-inward-dial
!
dial-peer voice 2 pots
destination-pattern ....
port 0/0/0:15
forward-digits all
!
dial-peer voice 3 pots
destination-pattern .....
port 0/0/0:15
forward-digits all
!
dial-peer voice 4 pots
destination-pattern 90.........
port 0/0/0:15
forward-digits all
!
dial-peer voice 5 pots
destination-pattern 9.......
port 0/0/0:15
forward-digits all
!