Cisco 521SG Administration Guide - Page 304

Cisco SPA IP Phone Field Reference Ext Tab A Parameter Use OB Proxy In Dialog Register Make Call Without Reg Register Expires Ans Call Without Reg Use DNS SRV Description Whether to force SIP requests to be sent to the outbound proxy within a dialog. Ignored if is no or is empty. Defaults to yes. Enable periodic registration with the . This parameter is ignored if is not specified. Defaults to yes. Allow making outbound calls without successful (dynamic) registration by the unit. If no, the dial tone will not play unless registration is successful. Defaults to no. Allow answering inbound calls without successful (dynamic) registration by the unit. If proxy responded to REGISTER with a smaller Expires value, the phone will renew registration based on this smaller value instead of the configured value. If registration failed with an Expires too brief error response, the phone will retry with the value given in the Min-Expires header in the error response. Defaults to 60. If enabled, the user does not have to be registered with the proxy to answer calls. Defaults to no. Whether to use DNS SRV lookup for Proxy and Outbound Proxy. Defaults to no. Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 303