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WS-X6608-E1-GW: Backhaul Link not established

jlehmann
Level 1
Level 1

We are operating with CM V 3.2(2c) and a WS-X6608 gateway for PSTN-Breakout via a Nortel Merdian PBX in a test environment. This breakout trunk now doesn't work anymore and we have the following error symptoms:

-PBX-Amistrator says, he didn't change anything

-GW says: "Registered" but "not connected"

-CM says: "GW receives and transmits normal signal" BUT "MGCP-Backhaul link NOT established"

Can anyone help, I didn't find anything in CCO yet.

Thanks, Jürgen

2 Replies 2

paul.harrison
Level 4
Level 4

I've had this problem when connecting to a Definity. It's to do with the D channel not being present.

I know the PBX guy say he didn't change anything but get him to reset his card.

Paul

Hi Paul,

thanks for your help.

the PBX guy did reset his card now and: it works again!

Jürgen