While sending fax, what are the files type I can attach with it? Where can I find the required file type details?
RingCentral supports 29 file types including PDF, TIFF, DOCX, DOC, XLSX, XLS, RTF, HTML, XML and many more.
Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.
Download RingCentral Phone for Desktop:
Tip: switch to the "sandbox mode" before logging in the app:
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