Cisco SPA525G Administration Guide - Page 128
Configuring Domain and Internet Settings, Configuring Restricted Access Domains, Configuring DHCP
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6 Configuring Security, Quality, and Network Features Configuring Domain and Internet Settings Parameter DTMF Tx Method Description Select the method to transmit DTMF signals to the far end: InBand, audio video transport (AVT), INFO, Auto, InBand+INFO, or AVT+INFO. InBand sends DTMF using the audio path. AVT sends DTMF as AVT events. INFO uses the SIP INFO method. Auto uses InBand or AVT based on the outcome of codec negotiation. Defaults to Auto. STEP 5 Click Submit All Changes. Configuring Domain and Internet Settings Configuring Restricted Access Domains You can configure restricted access domains. If you enter domains, the Cisco IP phones will respond to SIP messages only from the entered servers. STEP 1 Log in to the web administration interface. STEP 2 Click Admin Login and advanced. STEP 3 Click the System tab. STEP 4 Enter fully-qualified domain names (FQDNs) for each SIP server you want the phone to respond to. Separate with semicolons. STEP 5 Click Submit All Changes. Configuring DHCP, Static IP, and PPPoE Information STEP 1 Log in to the web administration interface. STEP 2 Click Admin Login and advanced. STEP 3 Click the System tab. 126 Cisco SPA and Wireless IP Phone Administration Guide