Cisco 7800 Series Administration Manual page 179

Parameter
Make Call Without Reg
Register Expires
Use DNS SRV
Proxy Fallback Intvl
Dual Registration
Subscriber Information
Parameter
Display Name
User ID
Password
Auth ID
Description
Enables making outbound calls without successful (dynamic) registration
by the phone. If set to no, the dial tone plays only when registration is
successful. To enable this feature, select Yes.
Default: No
Defines how often the phone renews registration with the proxy. If the
proxy responds to a REGISTER with a lower expires value, the phone
renews registration based on that lower value instead of the configured
value.
If registration fails with an "Expires too brief" error response, the phone
retries with the value specified in the Min-Expires header of the error.
The range is from 32 to 2000000.
Default: 3600 seconds
Enables DNS SRV lookup for the proxy and outbound proxy. To enable
this feature, select Yes. Otherwise, select No.
Default: No
Sets the delay after which the phone retries from the highest priority
proxy (or outbound proxy) after it has failed over to a lower priority
server.
The phone should have the primary and backup proxy server list from
a DNS SRV record lookup on the server name. It needs to know the
proxy priority; otherwise, it does not retry.
The range is from 0 to 65535.
Default: 3600 seconds
Set to Yes to enable the Dual registration/Fast Fall back feature. To
enable the feature you must also configure the alternate proxy/alternate
outbound proxy fields in the Proxy and Registration section.
Description
Name displayed as the caller ID.
Extension number for this line.
Password for this line.
Default: Blank (no password required)
Authentication ID for SIP authentication.
Default: Blank
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