Yealink SIP T2 Series Provisioning Manual page 42

Yealink IP Phones Auto Provisioning Guide
Why doesn't the IP phone download the ring tone?
Ensure that the file format of the ring tone is *.wav.
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Ensure that the size of the ring tone file is no larger than that the IP phone supports.
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Ensure that the properties of the ring tone for the IP phone are correct.
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Ensure that the network is available and the root directory is right for downloading.
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Ensure that the ring tone file exists on the provisioning server.
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Why doesn't the IP phone update configurations?
Ensure that the configuration files are different from the last ones.
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Ensure that the IP phone has downloaded the configuration files.
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Ensure that the parameters are correctly set in the configuration files.
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