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How would Centrex Data Circuit connect to ISDN

I have Central site with one ISDN (2B+D) Circuit. I have two remote site one with ISDN and other with Centrex 56K Data Circuit. Following is configuration of Central Site and one of the remote site with Centrex Data. Why can't they connect to each other ?.

Central Site Configuration

interface BRI0/0

ip address 192.168.0.45 255.255.255.252 secondary

ip address 192.168.0.37 255.255.255.252

no ip directed-broadcast

encapsulation ppp

no ip route-cache

no ip mroute-cache

dialer idle-timeout 1800

dialer map ip 192.168.0.38 name PPPP XXXXXXXXX

dialer map ip 192.168.0.46 name XXXX YYYYYYYYY

dialer-group 1

isdn switch-type basic-ni

isdn spid1 XXXXXXXXXXXX XXXXXXX

isdn spid2 YYYYYYYYYYYY YYYYYYY

isdn incoming-voice data

no fair-queue

ppp authentication chap

hold-queue 75 in

Remote Site Configuration

interface Serial0/1

ip address 192.168.0.46 255.255.255.252

encapsulation ppp

no ip mroute-cache

ppp authentication chap

1 REPLY
Anonymous
N/A

Re: How would Centrex Data Circuit connect to ISDN

Sounds like your remote site is a

sync 56K serial connection (ie up and

clocked all the time), and not a dial

on demand circuit. If that is the

case, there isn't a way to allow the

central site to connect to both a

remote ISDN user and a remote serial

user.

You should check with the carrier to see

if they can setup the Centrex for out

bound dialing, and then configure the

remote for DDR.

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