Is RingCentral Fax Caller Id only used for the fax header or is it also used to send the fax?

Question

如果我从在线帐户门户将呼叫者ID更新为我的自定义号码，RingCentral是使用该号码（我的号码）发送传真还是仅显示在传真标题和封面中？

Answer 1

Updating the fax caller id setting will update the number used to send the fax. It affects all of the following:

• fax number used to send fax
• fax number shown in fax header
• fax number shown on fax cover page

Your fax caller id number must be available system as shown in the "Available Caller ID Numbers" section on this answer:

Fax from parameter in RingCentral API is missing for sending fax