This requires three levels in the hierarchy of configuration:
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Location: The location of the site must be defined in the “locations” data, in order to permit calls to get different routing based on the city in question.
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Network Region: Each location will have one or more network regions. As an example, a university may have multiple campuses, each campus may have multiple buildings, and large buildings may have multiple floors.
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Network address map: Programming depends on the desired granularity. Each IP address in the table maps to a suitable network region.
The IP address may represent an IP subnet, an MGC or MG-XPEC, or the IP address of a UNIStim phone. Each entry may also include a number allowing calls back from the PSAP.
The System Manager and Communication Manager both permit the administrator to create locations and network regions for the IP phones, permitting the user to access services local to the user station. However, the Communication Manager must be correctly set up with the location service (Multiple Locations) or services (Multiple Locations and Multinational Locations) enabled.
This may require licensing changes for the Communication Manager, although most servers have the service entitlement in the licensing. If the licensing entitles the user to the services, the administrator may log in to the System Management Interface of the Communication Manager and enable the services. Note that only entitled services can be changed; if the services are not licensed, the administrator needs to purchase the new licenses.
