Operation Manual
Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 303
A
Use OB Proxy In 
Dialog
Whether to force SIP requests to be sent to the 
outbound proxy within a dialog. Ignored if <Use 
Outbound Proxy> is no or <Outbound Proxy> is empty.
Defaults to yes.
Register Enable periodic registration with the <Proxy>. This 
parameter is ignored if <Proxy> is not specified.
Defaults to yes.
Make Call Without 
Reg
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.
Register Expires 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.
Ans Call Without Reg If enabled, the user does not have to be registered with 
the proxy to answer calls.
Defaults to no. 
Use DNS SRV Whether to use DNS SRV lookup for Proxy and 
Outbound Proxy.
Defaults to no.
Parameter Description
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