Need a complete guide on how to solve FAX attachment errors.I am new to APIs
You need to give a complete details on what errors or exception you are getting. The most common issues user get in fax API is the attachment like pdf files etc and with the content type or mime type.
Asking a generalized question will not able to provide you exact answers you are looking for you you provide the specific error you are facing
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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