I have an update on this issue. I turned on the messaging in the Nortel and can see the call leave one site transit through the gateway with the call info (name and DN of called and calling), but when it arrives at the other site, the number comes in as unknown. I originally set this up as an MGCP gateway to do the routing on the CUCM, but hat problems so reloaded to a h323.
the dial peers are working, just not being recieved in the same format it leaves the original system.