Anyone linking PBX E1 across a WAN ?

Want to link a couple of Meridian exchanges across a low bit rate WAN using PRI - QSIG. Want to be able to send signalling channel uncompressed and associated voice timeslots using G.729 codec.
Do i tunnel timeslot 15 or send as transparent ?
Can anyone using this setup share their CFG or an example of this scenario ?
Tks.

I am using T1 PRI with Q.SIG. The other end could be any type of voice port such as E&M, FXS, or T1 PRI.
This is basicly my config. The PBX adds 21 & 41 as an access code and so that I do not overlap dial-peers.
hostname voice-rtr
isdn switch-type primary-qsig
controller T1 1/0
framing esf
linecode b8zs
pri-group timeslots 1-24
interface Loopback0
ip address 10.16.53.241 255.255.255.255
h323-gateway voip interface
h323-gateway voip bind srcaddr 10.16.53.241
interface FastEthernet0/0
ip address 10.16.53.3 255.255.255.240
speed 100
full-duplex
interface Serial1/0:23
no ip address
isdn switch-type primary-qsig
isdn protocol-emulate network
isdn incoming-voice voice
isdn T203 20000
no cdp enable
voice-port 1/0:23
input gain 2
output attenuation 10
description To PBX
dial-peer voice 418000 pots
description 8000-8999
destination-pattern 418...
direct-inward-dial
port 1/0:23
forward-digits 4
dial-peer voice 211000 voip
description 1000-1999
max-conn 20
destination-pattern 211...
progress_ind connect enable 8
session target ipv4:10.16.53.242
codec g711ulaw <<<== change to G729
expect-factor 0

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