Yealink CP860 [356/417] Why doesn t the ip phone get an ip address

Administrator’s Guide for CP860 IP conference phones

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 If your phone is PoE powered, ensure that you are using a PoE-compliant switch or

hub.

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Do one of the following:

 Ensure that the Ethernet cable is plugged into the Internet port on the IP phone and

the Ethernet cable is not loose.

 Ensure that the Ethernet cable is not damaged.

 Ensure that the IP address and related network parameters are set correctly.

 Ensure that your network switch or hub is operational.

Press the OK key when the IP phone is idle to check the basic information (e.g., IP

address, MAC address and firmware version).

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Do one of the following:

 Ensure that the target firmware is not the same as the current firmware.

 Ensure that the target firmware is applicable to the Phone model.

 Ensure that the current or the target firmware is not protected.

 Ensure that the power is on and the network is available in the process of

upgrading.

 Ensure that the web browser is not closed and refreshed when upgrading

firmware via web user interface.

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Check if the IP phone is configured to obtain the time and date from the NTP server

automatically. If your phone is unable to access the NTP server, configure the time and

date manually.