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E1/T1 link between CUCM 7 and CUCM 8

Hi guys,

is anyone able to help/advise on the following?

I have a CUCM 7 and a CUCM 8, I need to setup an E1/T1 link between the 2 callmanagers

the CUCM 7 is connected to a Cisco 2821 which has an E1 PRI card and the Cisco CUCM 8 is connected to a Cisco 2811 with also an E1 PRI card.

the callmanagers is literally in the same room but because I work for a telephony company that tests our own devices with Cisco we need to set this link up between the two call managers. We have a SIP trunk setup but also need E1 between the two.

I understand that both routers need to be configured for MGCP.

if anyone could help or advise I'd be most greatful

Hall of Fame Master

Re: E1/T1 link between CUCM 7 and CUCM 8

You actually have to use H.323 or SIP because to my knowledge, MGCP does not supports ISDN network side.

Beside that, have you considered engaging a certified cisco partner or reputable consltuant to have this (and other) problems solved quickly ?


Re: E1/T1 link between CUCM 7 and CUCM 8

Hi Paolo,

First of all many thanks for taking the time to reply to my post.

Are you able to send me a link to some information that can confirm what you have just said about ISDN not being supported on MGCP?

The strange thing is that the CUCM 7 side of things under Gateways on the CUCM web interface says that the interface is registered.

I'll attach a screen shot of what I see and also the config from the Cisco 2821.

The answer to your other question - Yes we could get a Cisco engineer in to help us but we like to give it our best effort at resolving our problems 1st and then if all fails we contact Cisco.

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