Mitel MIVOICE OFFICE 250, Руководство по установке и администрированию

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Private Networking
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• Will SMDR include all network calls? Where will the output port(s) be located? SMDR must be
buffered using an external storage device.
• Where will the message print be located?
• Where will fax machines, modems, and external paging be located?
• Will there be T.38 IP faxing between MiVoice Office 250 systems. IP faxing consumes two IP
resources per fax.
Design the Network
For optimum network operation, follow these guidelines:
•
Carefully manage the traffic on a central node : The central node is susceptible to unintentional
bottlenecks. Tips for preventing bottlenecks on the central node are:
• If the node contains an EM voice mail system with more than 16 ports and more than 128
Executive Display, Professional Display, or 8560 phones, redistribute the load by moving
some of the Executive Display, Professional Display, or 8560 phones to another node,
creating a new node, if necessary.
• If a networked node with an EM with Automated Attendant and/or Call Routing Applications
is expected to handle more than 1000 calls in an hour, use a separate EM to provide the
announcements.
• If a node with a centralized voice mail supports more than four nodes or a total of 1500
off-node devices, redistribute the load by reducing the number of phones on the central
node to 200 (adding another node, if necessary).
• A node used as an outgoing call center should not have more than 100 agents. Redistribute
the load among several nodes or place the call center on its own node.
• A node should not have more than 3 ISDN Primary Rate trunks for private networking or to
the central office. Redistribute the load by moving ISDN trunks to another node, adding a
node, if necessary.
• For very busy systems or large networks, equip the satellite nodes with their own local and
long distance trunks where possible.
• If the central node is used for all long distance calls, make sure it is equipped with enough
trunks to handle the peak traffic.
• Limit the maximum number of display phones to 206 per node : Redistribute the load by
adding another node if necessary.
• Eliminate data errors whenever possible : Currently, the system can experience slowdowns
during error dumps. The most common preventable errors are:
• T1 errors
• Fiber errors
• Glare: Ensure the Mitel system and central office are programmed to minimize glare by
initiating outgoing calls on the opposite end of a trunk group from the starting point for
incoming calls. Even when configuring in this manner, glare is possible when the system
gets very busy, but the likelihood of a glare condition is greatly reduced.