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PRI to T1 Configuration

bahman.tajkarimi
Beginner
Beginner

Hello guys,

I have a configured PRI line in a 3825 Cisco Router (Controller t1 0/0/0) and want to convert it to a T1 for outgoing calls. Could you please tell me how do I have to configure the router? Could you please help as faster as you can?

Thanks,

Bahman

7 Replies 7

gpulos
Collaborator
Collaborator

use something like the following:

of course, your encapsulation may not be FR so change it accordingly.

also, if the telco has not provisioned the circuit for T1 it wont work...PRI uses CCS and T1 uses CAS.

controller T1 1/0

framing esf

linecoding b8zs

channel-group 0 timeslots 1-24

!

interface serial 1/0:0

encapsulation frame-relay

!

interface serial 1/0:1.1

ip address 209.165.200.252 255.255.255.224

frame-relay interface-dlci 100

!

This my actual PRI configuration:

controller T1 0/0/0

shutdown

framing esf

linecode b8zs

pri-group timeslots 1-24 service mgcp

I am trying to do the following command:

no pri-group timeslots 1-24 service mgcp

but I receive the following error:

%Voice interface must be shutdown before deleting pri-group.

What Voice interface is it talking about?

And we're using MPLS. Could you please tell me how to configure the encapsulation for MPLS?

Thanks,

Bahman

conf t

voice-port 0/0/0:23

shut

then,

interface s0/0/0:23

shut

Then you can issue the 'no pri-group' under the controller.

After shuting down the interface s0/0/0:23 it says Remove layer 3 binding first and does not allow me to remove the PRI-Group.

Thanks,

Do the following

interface serial0/0/0:23

no isdn bind-l3 ccm-manager

Regards,

Anup

Thanks Anup! It was so helpful!

thanks Robert.  Worked like a champ.

conf t

voice-port 0/0/0:23

shut

then,

interface s0/0/0:23

shut

Then you can issue the 'no pri-group' under the controller.

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