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Deploying SpectraLink 8020/8030
Wireless Telephones
May 2009 Best Practices Guide
Most voice devices, such as the SpectraLink Wireless Telephones, do not require access to the protected
portion of the network (see Figure 8). Placing the handsets, SVP Server(s) and Telephony Gateways on
the unprotected network and requiring data users to connect to the VPN ensures that the network is
protected against hackers seeking to access sensitive information within the network core.
SVP Server and/or
Telephony Gateway
SpectraLink
handset
VPN Concentrator
Servers
AP
Devices that require
access to the network core
utilize a secure VPN
connection (dashed line)
AP
Protected Network Core Unprotected Network
Figure 8 - Deploying SpectraLink Wireless Telephones with a VPN
5.7 Diagnostic Tools
The SpectraLink handset provides three comprehensive diagnostic tools to assist the administrator in
evaluating the functionality of the handsets and the surrounding wireless infrastructure. These tools are:
Run Site Survey, Diagnostics Enabled, and Syslog Mode.
Site Survey can be used to evaluate the coverage within the facility where the handsets are deployed by
testing the signal strength, or to gather information about access points regardless of the SSID.
Diagnostics Enabled is used to evaluate the overall quality of the link between the handset, access
point, and other infrastructure equipment such as IP PBX, SVP Server, and gateways. The handset’s
diagnostics are enabled through the handset admin menu and are used while the handset is in the ‘off
hook’ state.
Syslog Mode allows the handset to send various Syslog messages such as Successful and Failed
handoffs along with reason codes indicating why the handset chose to handoff to a particular AP; Call
Starts and Ends; audio statistics; and security errors. Refer to the Diagnostic Tools section of the
SpectraLink e340/h340/i640 Wireless Telephone Administration Guide for a detail explanation of
information provided by each of the Diagnostic tools.
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