April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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Optimizing Beyond the 802.11 Standard
PBX
NetLink Telephony Gateway
NetLink SVP Server
802.11 Access
Points
NetLink
Wireless
Telephones
Wireless
Clients
Ethernet LAN
Analog or
Digital Interface
IP Telephony Server
Figure 8.2: Spectralink Architecture.
stipulates that each access point provides a primitive call-admission mechanism, which
enforces the maximum number of voice calls that may be active on an access point at any
time. By limiting this number, the IT manager can effectively control the level of call quality
that one wishes to guarantee to the VoWIP calls that are connected. Intuitively, it may appear
that a second reason to limit the number of calls ...
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