H.323 Gateway Registration

Hi,
I am trying to configure H.323 to a CUCM cluster. I was able to configure using the IP address. However when I tried using the hostname, it is unable to get registered. According to the Cisco doc help:
Device Name: Enter a unique name that Cisco Unified Communications Manager uses to identify the device. Use either the IP address or the host name as the device name.
Should we enter the hostname as configured on the IOS Gateway or hostname as configured on DNS server?

In the device you would be using the hostname that must be resolved by DNS.
hostname# resolve to IP address of the GW.
Br,
Nadeem 
Please rate all useful post.

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     translate calling 1
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     rule 1 /^\(.*\)/ /0\1/ type subscriber unknown plan any unknown
     rule 2 /^\(.*\)/ /00\1/ type national unknown plan any unknown
     rule 3 /^\(.*\)/ /000\1/ type international unknown plan any unknown
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