[c-nsp] ISDN 2x64kbps

[ambedkar]

Hi,
This is Ambi from india. i am using ISDN connectivity between two 
remote places. i am having one ISDN number which is having 2x64kbps 
capability. when i am connecting with this ISDN number, i am able to 
connect only one B-channel and second B-channel is unable to 
establish.
i have configured the router with the following parameters.

interface BRI1/0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
.
.
.
.
interface Dialer1
ip address 192.168.1.2 255.255.255.0
encapsulation ppp
dialer pool 1
dialer idle-timeout 600
dialer string xxxxxxxxxx
dialer-group 1
!
and vice-versa.

please help me in this regard.
bye.