Hi Guys,

I'm having trouble with a centralized CUCM 6.0 here in the Netherlands and a local branch offices in Germany with it's own ISDN-30 gateway. While the IP-Phone sends it's CLID by sending it's External Phone Number Mask. The Voice Gateway does not do any translating on the called ID. But whatever I'm trying to send out to T-Systems (German Telco), it always sends out the main number of the ISDN bundle.

I've allready contacted T-Systems asking what they see as CLID, but they only see the main number as well. The told me to send 'type National' and not to screen the CLID.

If I run a 'debug ISDN q931' I see that the type is set to none. But if I set the type to nationall on the dial-peer, the call is not going out. Although I'm pretty shure the problem resides on the telco side.

I attached some pieces of the config, some show commands and debug traces.

Could someone please help me with this issue?

Best regards,

Paul van den IJssel

Digacom