Yealink SIP-T4X Provisioning Manual page 61

A sample audio file loaded is shown as below:
4. Select and copy the audio waveform.
5. Select File->New to create a new file, set the channels as Mono, the sample rate as
8000 and the resolution as 16-bit.
6. Paste the audio waveform to the new file.
7. Select File->Save as to save the new audio file. On the Save waveform page,
select the file format as A/mu-law wave.
The original picture format must be *.bmp or *.gif. We recommend placing all files and
the PictureExDemo application to the root directory of the PC.
Appendix
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