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Using Session Initiated Protocol (SIP)
Using the SIP Phone
Other Features
Remote software upgrade: A predefined key sequence will download
the SIP phone software and restart the phone. The SIP phone should
have been configured with the correct TFTP server IP address.
Phone book: This feature allows the phone to be used without a SIP
server. A set of 10 numbers can be programmed to the phone and the
phone will directly contact these numbers without the help of a SIP server.
Remote diagnosis: The SIP phone will send its status and other mes-
sages to the log server configured in the SIP phone. The remote log server
should run the server application from D-Link to receive and display these
messages. This feature can be disabled through the browser.
Restore factory defaults: If you enter the specified key sequence, the
SIP phone restores the configurable parameters to default values upon
the next restart.
Production testing: If you enter the specific key sequence, the D-Link
SIP phone will execute a production test upon the next restart. The pro-
duction test is described later in this section.
Error Conditions
The D-Link SIP phone detects the following error conditions and plays an error
tone.
Error tone on network connection failure.
It will return to the normal state upon making a network connection. The link
LED also gives this information.
Error tone if there is no DHCP server.
The phone will recover on detecting a DHCP server.
Error tone if the SIP proxy is down upon power up.
The phone will recover on detecting a SIP server.
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