Cisco 521SG Administration Guide - Page 137

Configuring Security, Quality, and Network Features Configuring Domain and Internet Settings 5 Parameter Description Use Remote Pref Codec To set the phone to communicate by using the remote phone-preferred codec, select yes. If set to no, the Cisco IP phone communicates by using its own preferred codec (as indicated in the Preferred Codec field and in the SDP by order of preferences). The default vale is no. Codec Negotiation When set to Default, the Cisco IP phone responds to an Invite with a 200 OK response advertising the preferred codec only. When set to List All, the Cisco IP phone responds listing all the codecs that the phone supports. The default value is Default. Configuring Domain and Internet Settings Configuring Restricted Access Domains If you enter domains, the Cisco IP phones respond to SIP messages only from the identified servers. To configure restricted access domains, navigate to Admin Login > advanced > Voice > System. Under System Configuration in the Restricted Access Domains field. Enter fully-qualified domain names (FQDNs) for each SIP server you want the phone to respond to. Separate FQDNs with semicolons. For example, voiceip.com;voiceip1.com. Configuring DHCP, Static IP, or PPPoE Connection Type You can set the connection type to one of the following: Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 136