Cisco SPA301 Administration Manual page 340

Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
Parameter
Make Call Without Reg
Register Expires
Ans Call Without Reg
Use DNS SRV
DNS SRV Auto Prefix
Description
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.
If enabled, the phone will automatically prepend the
Proxy or Outbound Proxy name with _sip._udp when
performing a DNS SRV lookup on that name.
Defaults to no.
A
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