Mitel Inter-Tel 5000 Installation And Maintenance Manual page 390

Appendix A: Inter-Tel Private Networking
Network Operation of System Features
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Page A-24
Automatic Route Selection (ARS): Each node has its own ARS programming. All trunk
groups and nodes in a facility group must reside on the same node as the facility group.
You cannot place a node trunk group into a facility group. (See also Outgoing Access on
this page.) Using ARS is the only way a user can access trunks on other nodes. If the
system routes an outgoing call to another node using an intermediary node, the
intermediary node's ARS cannot use the nodes in its facility group to move the outgoing
call to another node. This eliminates the system from getting into an infinite loop searching
for a node to route the outgoing call.
ARS Toll Restriction: When determining toll restriction for an ARS outgoing call, the
network only checks the endpoint toll restriction for the node on which the endpoint
resides. The system does not check the trunk class of service for ARS calls.
Emergency Calls: Emergency calls, by default, use the first local trunk group and will not
be sent using node trunk groups on other nodes. However, when ARS is used to place an
emergency call, Route Group 1 is used even if it contains nodes. This means that the
network can access a trunk on a node other than the user's node if the user accesses
ARS and dials the emergency number. Inter-Tel strongly recommends that local trunks
be installed and used for emergency number trunk access and that nodes not be
used in Route Group 1. When a user places an emergency call, every administrator in
the network receives an emergency alarm.
Direct Inward System Access (DISA): DISA callers can select off-node endpoints, hunt
groups, and Voice Processing applications.
Keymaps: Each node contains its own keymap programming.
DSS/BLF Keys: You can program a DSS button for an extension that resides on another
node. The buttons will show lamp status for endpoints on the other nodes.
Secondary Extension Keys: The primary endpoint and the secondary endpoint must
reside on the same node. A secondary extension cannot be a phantom extension.
Music-On-Hold and Background Music: Each node has a music source. If a caller on
Node 1 is holding for a user on Node 2, the caller hears the music on node 2. Note that if a
caller is holding for a user on Node 1 and the call moves to Node 2 (due to a transfer,
forward, or recall), the user will stop hearing the music on Node 1 and will begin hearing
the music on Node 2. The system can be programmed to determine the music source a
caller hears based on the device for which the caller is waiting.
Handsfree Calls: The network allows handsfree intercom calls when calling from one
node to another.
Camp On: A user can camp on to busy resources on another node. When the system has
several routing options for a call, it tries to use each route, in order, until it finds a free
route. If it is unable to find a free route, the system tries once again to use the first route. If
the first route is still busy, the system camps on to the first route.
Queue: A user cannot queue onto busy resources on another node because Queue is not
supported on a network.
Inter-Endpoint Messages: The network allows users to leave messages for, and respond
to messages from, users on a different node. The endpoint message center or alternate
message source does not need to be on the same node as the endpoint. It can be a
endpoint, hunt group, Voice Processing application, or any off-node device.
Off-Hook Voice Announce (OHVA): The network allows intercom callers to establish
OHVA calls to endpoints on other nodes. OHVA is not functional on IP endpoints.
Account Codes: The network validates account codes against the account code table on
the same node as the caller. The account code follows the call as it moves from node to
node and appears on every SMDR record associated with the call. However, if an optional
account code is entered during the call, that account code will be used in the SMDR
report.
System Hold: When a user puts a trunk on system hold, only that user and users on the
same node as the trunk can access the call.
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Inter-Tel 5000 Installation Manual – Issue 2.4, May 2008