ISR G3 4300 ISDN E1 Interface

[James Hawkins]

Hello,

I am deploying a Cisco ISR G3 4351 router as an ISDN PRI voice gateway.

I cannot get the ISDN interface to Multiple Frame Established.

It does not seem to be receiving responses to the SABME packets it is sending.

I am not convinced that my config is correct as the DSP and clocking setup are very different from ISR G1 and G2.

Does anyone have a ISR G3 E1 ISDN PRI config that they know works?

Thanks!

[James Hawkins]

It was an IOS issue.

isr4300-universalk9.03.13.04.S.154-3.S4-ext.SPA.bin did not work

isr4300-universalk9.03.13.02.S.154-3.S2-ext.SPA.bin does work

The faulty IOS is later than the working one!

To configure the voice card I used the document at the link below.

http://www.cisco.com/c/en/us/support/docs/routers/4000-series-integrated-services-routers/118792-config-isr-00.html

[Ayodeji Okanlawon]

+5..Hi James thanks for sharing this. Really good. I did send you a PM a while back. Did you get it? 

[James Hawkins]

Hi, I did get it - about the UK dial plan iirc?

Sorry I did not respond. I have been snowed under with work for the last few months.

I have a few quiet days next week and so will try to respond then.

[Ayodeji Okanlawon]

Thank you.