Extension Numbers; Programming Off-Node Extension Numbers - Mitel Inter-Tel 5000 Installation And Maintenance Manual

Extension Numbers

Each node has an extension and feature code programming. However, the network should have
a universal numbering plan so that extension numbers on the various nodes do not overlap and
do not conflict with feature codes. That is, when planning the extension numbers for each of the
nodes in the network, set aside a block of extension numbers (for endpoints, hunt groups, Voice
Processing applications, etc.) for each node.

Programming Off-Node Extension Numbers

You can give users access to endpoint, hunt group, Voice Processing application, and page port
extensions on other nodes in two ways:
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Each node can have only 10,000 off-node device entries in its database. Once that limit has
been reached, new devices received through network broadcasts cannot be added to the
node's database. You can make room in the database for new extensions by setting up wildcard
extensions as described below.
If you change a device extension, username, or description, the network automatically
broadcasts that extension change to the entire network and updates any existing off-node
devices on the other nodes. If the network is unable to export or import an extension because
there is an active programming session on that node, the node is unable to communicate with
its Voice Processing port, the node is down, or the links to the node are down, the new
extension will not be added to or changed on that node. You must manually add or change the
new extension in the node database. You may want to check each node to verify that their off-
node device lists are programmed properly to allow access between the nodes.
Nodes are assigned extension numbers that users can dial to reach endpoints which are not
programmed as off-node devices on their node. Also, if the same extension number exists on
two nodes, the only way a user can call the extension on the other node is to dial a node
number before dialing the extension number. For example, if extension 1200 exists on both
Node 1 and Node 2, users on Node 1 must first dial the node number for Node 2 to before
dialing extension 1200 on Node 2. (Note that each node trunk group also has an extension, but
the number cannot be dialed by users.)
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Inter-Tel 5000 Installation Manual – Issue 2.4, May 2008
You can manually program off-node devices (extensions from other nodes) into the
database of the node you are programming. To give a node access to an off-node device,
program the extension number, username, description, device type (endpoint, hunt group,
Voice Processing application, or page port), and node identification number. The network
uses the username and descriptions for directory features only. If you define an extension
conflict, DB Programming does not allow you to exit the screen until you correct the
conflict.
You can import and export new extensions as you create them. When you add a new
extension, DB Programming automatically makes the new extension visible to the other
nodes in the network. Or you can manually export local devices to other nodes (or import
devices from other nodes) using the Export/Import option in DB Programming. The
network broadcasts the new extension number (along with the username, description,
device type, and node identification number) to the other nodes in the network and places
it in their off-node device lists. If there is an extension conflict on another node, the node
with the conflict ignores the new extension in favor of the previous extension number. Also
note that if the network is unable to route the broadcast message to a node, that node will
not be able to receive and re-broadcast the new information and it must be entered
manually. (If Message Print is enabled, error messages will indicate any unsuccessful
broadcasts.)
Appendix A: Inter-Tel Private Networking

Extension Numbers

Page A-15