Hello,
I'm trying to enable the TBCT feature in my lab and even if I configure the TBCT in the Gateway it does not work. DO I nned to create a TCL or VXML script. If so were to I place that script and how is it invoke from a Dialpeer point of vue.
here is my show run:

Building configuration...

Current configuration : 8021 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname MODVCGW1
!
boot-start-marker
boot-end-marker
!
logging buffered 99999999 debugging
no logging console
!
no aaa new-model
!
resource policy
!
clock timezone EST -5
clock summer-time DST recurring
network-clock-participate wic 0
network-clock-select 1 T1 0/0/0
ip subnet-zero
!
!
ip cef
!
!
no ip domain lookup
ip domain name dev.local.csst.qc.ca
ip host mediaserver 10.11.38.166
ip host tts-en-us 10.11.38.166
ip host asr-en-us 10.11.38.166
ip host CVPPrimaryVXMLServer 10.11.38.166
isdn switch-type primary-ni
carrier-id 6550
!
!
trunk group 1
carrier-id 6550
isdn supp-service tbct
!
voice-card 0
no dspfarm
!
!
voice rtp send-recv
!
voice service pots
!
voice service voip
signaling forward unconditional
h323
call start slow
!
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729r8
!
!
!
!
!
!
!
!
!
http client cache memory pool 15000
http client cache memory file 500
http client cache refresh 864000
http client connection timeout 60
http client response timeout 30
ivr prompt memory 15000
ivr prompt streamed none
ivr asr-server rtsp://asr-en-us/recognizer
ivr tts-server rtsp://tts-en-us/synthesizer
!
application
service vru-leg flash:bootstrap.tcl
paramspace english index 0
paramspace english language en
paramspace english location flash
paramspace english prefix en
!
service new-call flash:bootstrap.vxml
paramspace english language en
paramspace english index 0
paramspace english location flash
paramspace english prefix en
!
service cvperror flash:cvperror.tcl
paramspace english index 0
paramspace english language en
paramspace english location flash
paramspace english prefix en
!
service CVPSelfService flash:CVPSelfServiceBootstrap.vxml
paramspace english index 0
paramspace english language en
paramspace english location flash
paramspace english prefix en
!
service takeback flash:survivability.tcl
paramspace english language en
paramspace english index 0
paramspace english location flash:
paramspace english prefix en
!
service WelcomeTBCT flash:CVPSelfService.tcl
paramspace english index 0
paramspace english language en
param CVPSelfService-port 7000
param CVPSelfService-app WelcomeTBCT
paramspace english location flash:
param CVPPrimaryVXMLServer 10.11.38.166
paramspace english prefix en
!
service HelloWorld flash:CVPSelfService.tcl
paramspace english language en
paramspace english index 0
param CVPSelfService-port 7000
param CVPSelfService-app HelloWorld
param CVPPrimaryVXMLServer 10.11.38.166
paramspace english location flash
paramspace english prefix en
!
service handoff flash:handoff.tcl
paramspace english index 0
paramspace english language en
paramspace english location flash
!
!

controller T1 0/0/0
framing esf
linecode b8zs
cablelength short 133
pri-group timeslots 1-6,24
description TELUS PRI 55IPCD032711
!
!
!
interface Loopback0
ip address 192.168.1.2 255.255.255.0
!
interface FastEthernet0/0
description MONTREAL VOICE GATEWAY MODVCGW1 FE 0/0
ip address 10.11.38.162 255.255.255.0
duplex full
speed 100
h323-gateway voip interface
h323-gateway voip id SSDVCGK1 ipaddr 10.36.8.162 1719
h323-gateway voip h323-id modvcgw1
h323-gateway voip tech-prefix 2#
h323-gateway voip bind srcaddr 10.11.38.162
no routing dynamic
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:23
no ip address
isdn switch-type primary-ni
isdn incoming-voice voice
isdn supp-service tbct notify-on-clear
trunk-group 1
no cdp enable
!
ip classless
ip route 10.0.0.0 255.0.0.0 10.11.38.1
!
!
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip rtcp report interval 3000
!
access-list 23 permit 10.10.10.0 0.0.0.7
!
!
!
control-plane
!
!
!
voice-port 0/0/0:23
!
!
!

!
dial-peer voice 2047 pots
trunkgroup 1
service welcometbct
destination-pattern 5145555555
incoming called-number 2047
carrier-id source 6550
carrier-id target 6550
direct-inward-dial
!
gateway
timer receive-rtp 1200
!

!
end

Found the answer by myself.