Cisco SPA303 - Chapter 5: Configuring Security, Quality, and Network Features; Setting Security Features

5
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 128
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, page 128
• Ensuring Voice Quality, page 132
• Configuring Voice Codecs, page 136
• Configuring Domain and Internet Settings, page 140
• Setting Optional Network Parameters, page 143
• Configuring VLAN Settings for IP Phones, page 145
• Configuring SSL VPN on the Cisco SPA525G/525G2, page 155
Setting Security Features
The following features help ensure that calls are secure and authenticated.
• SIP Initial INVITE and MWI Challenge, page 129
• SIP Over TLS, page 129
• SRTP and Securing Calls, page 130