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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones

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Do one of the following:

 Ensure that the IP phone is properly plugged into a functional AC outlet.

 Ensure that the IP phone is plugged into a socket controlled by a switch that is on.

 If the IP phone is plugged into a power strip, try plugging it directly into a wall

outlet.

 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.

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The LCD screen prompts “No Service” message when there is no available SIP account

on the IP phone.

Do one of the following:

 Ensure that an account is actively registered on the IP phone at the path

Menu->Status->More->Accounts.

 Ensure that the SIP account parameters have been configured correctly.

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.