Spectralink 8020 Installation Instruction

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FIELD VERIFIED 
as stairwells and outdoor areas. NetLink Wireless Telephones have a Site Survey mode 
that displays dBm levels to determine adequate WLAN coverage. Refer to the NetLink 
Wireless Telephone Configuration and Administration
 document for details about this 
feature. 
Number of handsets per access point 
Estimate the number of NetLink Wireless Telephones and their anticipated call volume 
per AP area to ensure that the maximum number of calls per AP will not be exceeded. In 
this estimate, consider the data rates at which the handsets will operate. Higher data rates 
can only be sustained while well within the range of the AP. If the NetLink Wireless 
Telephones will be operating near the limits of the RF coverage from the AP, they will 
automatically drop to 1 Mb/s operation. NetLink Wireless Telephones require 
approximately 15% of the available bandwidth per call for 1 Mb/s operation, 
approximately 10% of the available bandwidth per call for 2 Mb/s operation, 
approximately 7% of the available bandwidth per call for 5.5 Mb/s operation, and 
approximately 5% of the available bandwidth per call for 11Mb/s operation. 
Note: the maximum number of telephone calls per AP quoted in the summary table 
above is based on 11 Mb/s operation, and will be reduced if some or all NetLink 
Wireless Telephones are operating at 1, 2, or 5.5 Mb/s. 
LAN bandwidth 
Estimate anticipated peak call volume to ensure that the LAN has enough bandwidth 
available to handle the network traffic generated by all of the wireless devices. Network 
traffic can be monitored/analyzed using a network sniffer or a simple network 
management protocol (SNMP) workstation. 
Number of other wireless devices per AP 
The NetLink Wireless Telephones share bandwidth with other wireless devices. To 
ensure adequate RF bandwidth availability, consider the number of wireless data devices 
in use per AP. 
Notes on Configuration 
 
The AP must support SpectraLink Voice Priority (SVP). Contact your AP 
vendor if you need to upgrade the AP software. 
If you encounter difficulties or have questions regarding the configuration process, 
please contact the Customer Support Hotline at (800) 775-5330. The hotline is open 
Monday through Friday, 6 a.m. to 6 p.m. Mountain time. 
PN: 72-9977-00-E.doc 
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