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Configuring Advanced Features
123
eatures.htm
To configure the trusted IP address(es) for Action URI via web user interface:
1.
Click on Phone->Features.
2.
Enter the IP address or any in the Trusted Action URI Server List field.
Multiple IP addresses are separated by comma. If you leave the field blank, the IP
phone cannot receive or handle any HTTP GET request.
3.
Click Confirm to accept the change.
Many SIP servers are deployed in redundant pairs, designated as primary and
secondary servers. The IP phone must always contact the primary server except in
failover conditions. Server redundancy is often required in VoIP deployments to ensure
continuity of phone service, for events where the server needs to be taken offline for
maintenance, the server fails, or the connection between the IP phone and the server
fails. The IP phone is able to route to a secondary (or alternate) server in a failure
situation, which requires the use of DNS SRV query for the resolution of proxy address as
specified by RFC 3263.
Before connecting a network through the domain name of the server, the IP phone
performs a DNS SRV query. It sends out a DNS SRV query to the server to look up the IP
address and port, and then waits for a response from the server. The DNS SRV query
involves NAPTR, SRV and A queries, which allows the IP phone to adapt to various
Summary of Contents for VP530 IP
Page 1: ......
Page 4: ......
Page 12: ......
Page 111: ...Configuring Basic Features 99...
Page 153: ...Configuring Advanced Features 141...
Page 171: ...Configuring Security Features 159...
Page 182: ...Administrator s Guide for VP530 IP Video Phone 170 Phonebook on page 266...
Page 183: ...Resource Files 171...
Page 194: ...Administrator s Guide for VP530 IP Video Phone 182 3 Click OK to confirm the resetting...
Page 195: ...Troubleshooting 183...
Page 344: ...Administrator s Guide for VP530 IP Video Phone 332...