Cisco 7800 Series Administration Manual page 178

Cisco IP Phone Web Page
Parameter
Auto Ans Page On Active Call
Feature Key Sync
Supplementary Services
Parameter
DND Setting Line
Proxy and Registration
Parameter
Proxy
Outbound Proxy
Alternate Proxy
Alternate Outbound Proxy
Register
Cisco IP Phone 7800 Series for Third-Party Call Control Administration Guide
164
Description
Determines the behavior of the phone when a page call arrives.
Enable/disable the Feature Key synchronization
Description
Enables or disables Do Not Disturb.
Description
SIP proxy server and port number set by the service provider for all
outbound requests. For example: 192.168.2.100:6060.
The port number is optional.
Default: 5060
All outbound requests are sent as the first hop. Enter an IP address or
domain name.
This feature provides fast fall back when there is network partition at
the Internet or when the primary proxy (or primary outbound proxy) is
not responsive or available. The feature works well in a Verizon
deployment environment as the alternate proxy is the Integrated Service
Router (ISR) with analog outbound phone connection.
Enter the proxy server addresses and port numbers in these fields. After
the phone is registered to the primary proxy and the alternate proxy (or
primary outbound proxy and alternate outbound proxy), the phone
always sends out INVITE and Non-INVITE SIP messages (except
registration) via the primary proxy. The phone always registers to both
the primary and alternate proxies. If there is no response from the
primary proxy after timeout (per the SIP RFC spec) for a new INVITE,
the phone attempts to connect with the alternate proxy. The phone
always tries the primary proxy first, and immediately tries the alternate
proxy if the primary is unreachable.
Active transactions (calls) never fall back between the primary and
alternate proxies. If there is fall back for a new INVITE, the
subscribe/notify transaction will fall back accordingly so that the phone's
state can be maintained properly. You must also set Dual Registration
in the Proxy and Registration section to Yes.
Enables periodic registration with the proxy. This parameter is ignored
if a proxy is not specified. To enable this feature, select Yes.
Default: Yes