Operation Manual

Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 5
Contents
Configuring SIP Settings for Extensions 114
Configuring a SIP Proxy Server 120
Configuring Subscriber Information Parameters 122
Configuring the IP Phone Communications Protocol 123
Configuring the Protocol on a Cisco SPA525G or Cisco SPA525G2 124
Configuring the Protocol on a Cisco SPA300 Series or Cisco SPA500 Series
IP Phone 124
Managing NAT Transversal with Cisco IP Phones 124
NAT Mapping with Session Border Controller 125
NAT Mapping with SIP-ALG Router 125
NAT Mapping with a Static IP Address 125
NAT Mapping with STUN 126
Determining Whether the Router Uses Symmetric or Asymmetric NAT 127
Chapter 5: Configuring Security, Quality, and Network Features 129
Setting Security Features 130
Challenging SIP Initial INVITE and MWI Messages 130
Encrypting Signaling with SIP Over TLS 130
Securing Voice Traffic with SRTP 131
Authorizing Secure Calls with a Mini-certification 131
Secure Call Indication Tone 132
Configuring Voice Codecs 132
Configuring Domain and Internet Settings 136
Configuring Restricted Access Domains 136
Configuring DHCP, Static IP, or PPPoE Connection Type 136
Configuring Power Settings 138
Setting Optional Network Servers 138
Configuring VLAN Settings 140
Configuring Cisco Discovery Protocol (CDP) 140
Configuring LLDP-MED 140
TLV Information 142
Configuring the VLAN Settings 148
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