1. Tap the RC Phone app icon on your mobile phone.
2. Tap Messages on lower left corner.
3. Tap All Messages > Select Fax.
4. Tap the New Message icon.
5. Type the recipients number in the To: field. Alternatively, tap the plus icon to choose a contact from your phone.
6. Tap to select your Cover Page.
7. Tap the Attach icon to add a file to fax.
NOTE: The file size limit of your attachment is 20 MB. Make sure you authorize the RingCentral mobile app to access Dropbox, and/or Box if you want to attach a file from either or both cloud-based storage.
8. Select the location of your file: Documents, Photos, Dropbox, or Box. Select the file.
9. Tap Send.