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New Member

ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

my question:

A router has one E1/ISDN-PRI port , another router also with E1/ISDN-PRI.

Can the two router dial to each other ?if can ,how to confige .if not ,why ?

5 REPLIES

Re: ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

This is possible. To set this up, you need quite some configuration. I have extracted the vital parts from a working config. You have to configure it like this on both routers. Keep the names and IP's unique.

Configuration example:

!

hostname test-r02

!

user test-r01 passw cisco

!

interface Loopback1

ip address 10.253.235.1 255.255.255.0

no ip directed-broadcast

!

controller E1 1/0

framing NO-CRC4

pri-group timeslots 1-31

description ISDN30

!

interface Serial1/0:15

description ISDN30

no ip address

no ip directed-broadcast

encapsulation ppp

no ip route-cache

no logging event link-status

dialer pool-member 1 max-link 60

isdn switch-type primary-net5

no cdp enable

ppp authentication chap pap

!

interface Dialer4

description Test

bandwidth 64

ip unnumbered Loopback1

no ip directed-broadcast

encapsulation ppp

no logging event link-status

dialer remote-name test-r01

dialer idle-timeout 300

dialer enable-timeout 2

dialer string

dialer pool 1

dialer-group 1

no cdp enable

ppp authentication chap

!

ip route dialer 4

I realize that it is a lot of config. Hope this gets you started anyway!

Goodluck,

Leo

New Member

Re: ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

Thank you very much .BTW ,do you test with above configuration ?

Re: ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

No, this part of a working config. I might have overlooked a few minor details but if you run into trouble, just post the configs and we will help you out.

The router in question is a 3640 and it has about 60 dialers configured in this way. Authentication etc is done via an AAA server. I have only removed the phone-numbers and altered the IP adresses for obvious reasons.

Goodluck,

Leo

New Member

Re: ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

does the 'interface s1/0:15' that 15 channels will be used?

I want to do this for a T1/PRI to a T1/PRI and use all channels

Silver

Re: ASK QUESTION: CAN ISDN-PRI dial to another ISDN-PRI ?

Yes, we can configure routers with PRIs to call each other:

http://www.cisco.com/warp/public/793/access_dial/pri_dialin_6435.html

Thanks, Mak.

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