Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 5
Contents
NAT Mapping with Session Border Controller 124
NAT Mapping with SIP-ALG Router 124
Configuring NAT Mapping with a Static IP Address 124
Configuring NAT Mapping with STUN 125
Determining Whether the Router Uses Symmetric or Asymmetric NAT 126
Chapter 5: Configuring Security, Quality, and Network Features 128
Setting Security Features 128
SIP Initial INVITE and MWI Challenge 129
SIP Over TLS 129
SRTP and Securing Calls 130
Secure Call Indication Tone 131
Ensuring Voice Quality 132
Supported Codecs 132
Bandwidth Requirements 133
Factors Affecting Voice Quality 134
Configuring Voice Codecs 136
Configuring Domain and Internet Settings 140
Configuring Restricted Access Domains 140
Configuring DHCP, Static IP, and PPPoE Information 140
Setting a Static IP Address 141
Configuring PPPoE Settings (Cisco SPA525G/525G2 only) 142
Setting Optional Network Parameters 143
Configuring VLAN Settings for IP Phones 145
Configuring Cisco Discovery Protocol (CDP) 145
Configuring Link Layer Discovery Protocol for Media Endpoint
Devices (LLDP-MED) 146
TLV Information 147
Configuring the VLAN Settings 154
Configuring SSL VPN on the Cisco SPA525G/525G2 155
Configuring the VPN on the Security Appliance 156
Configuring the VPN on the Cisco SPA525G/525G2 157
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