You will have to ask the person at the other end to activate their machine when they answer. I need to send photographs, but the results are unusable when they reach the receiver. If you choose this mode, the facsimile machine will do a better job sending photographs. The transmission time can be significantly longer in this mode. I received a facsimile and it looked poor when it printed out.
All facsimile machines have a copy mode.
Copy a document and examine the results. If you are getting good results in copy mode, then any poor receptions are the fault of the sending machine or a result of random line noise. I got a call from someone saying they received a fax from me and it was hard to read. All facsimile machines have a copy mode. Copy a document and examine the results.