Use the Uniform Dial Plan (UDP) feature to share a common dial plan among a group of servers. The UDP applies both interserver dialing and intraserver dialing. The UDP provides the dial plans from 3 to 18 digits.
UDP provides extension-to-extension dialing between two or more private-switching systems.
You can use UDP with the following entities:
Main servers
Tributary servers
Satellite servers
Electronic Tandem Networks (ETN)
Distributed Communication Systems (DCS)
Note:
You must use a 4-digit dial plan or a 5-digit dial plan for DCS.
