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Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 108
Configuring Security, Quality, and Network
Features
This chapter describes how to configure security, quality, and network features for
the phone. It contains the following sections:
• “Setting Security Features” section on page 108
• “Ensuring Voice Quality” section on page 112
• “Configuring Voice Codecs” section on page 117
• “Configuring Domain and Internet Settings” section on page 120
• “Setting Optional Network Parameters” section on page 124
• “Configuring VLAN Settings” section on page 125
• “Configuring SSL VPN on the Cisco SPA 525G” section on page 127
Setting Security Features
The following features help ensure that calls are secure and authenticated.
• “SIP Initial INVITE and MWI Challenge” section on page 109
• “SIP Over TLS” section on page 109
• “SRTP and Securing Calls” section on page 110
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