AudioCodes Mediant 500 MSBR, User Manual

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User's Manual 272 Document #: LTRT-10375
Mediant 500 MSBR
The gathering of location information in the Skype for Business network is illustrated in the
figure below:
Figure 18-52: Microsoft Skype for Business Client Acquiring Location Information
1. The Administrator provisions the LIS database with the location of each network
element in the Enterprise. The location is a civic address, which can include
contextual in-building and company information. In other words, it associates a
specific network entity (for example, a WAP) with a physical location in the Enterprise
(for example, Floor 2, Wing A, and the Enterprise's street address). For more
information on populating the LIS database, see Adding ELINs to the Location
Information Server on page 273.
2. The Administrator validates addresses with the emergency service provider's MSAG –
a companion database to the ALI database. This ensures that the civic address is
valid as an official address (e.g., correct address spelling).
3. The Skype for Business client initiates a location request to the LIS under the following
circumstances:
•
Immediately after startup and registering the user with Skype for Business
•
Approximately every four hours after initial registration
•
Whenever a network connection change is detected (such as roaming to a new
WAP)
The Skype for Business client includes in its location request the following known
network connectivity information:
•
Always included:
♦
IPv4 subnet
♦
Media Access Control (MAC) address
•
Depends on network connectivity:
♦
Wireless access point (WAP) Basic Service Set Identifier (BSSID)
♦
Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED)
chassis ID and port ID
For a Skype for Business client that moves inside the corporate network such as a soft
phone on a laptop that connects wirelessly to the corporate network, Skype for
Business can determine which subnet the phone belongs to or which WAP / SSID is
currently serving the soft-client.
4. The LIS queries the published locations for a location and if a match is found, returns
the location information to the client. The matching order is as follows: