Use the RingCentral FaxOut API to pass fax data to RingCentral so that your fax can be sent. The response tells you whether the fax was accepted or not. In the request, you can include a recipient's phone number, coverpage, resolution, send time, and attachment containing the document to fax. The FaxOut API is related to the RingCentral Fax product, which has features of toll free or local numbers, receiving faxes as emails, faxing from an application, electronic editing and signatures, secure faxes, and fax alerts and history logs.
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