A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Genuine Toshiba owner's manual. Couldn't really ask for more. And written in understandable English in contrast to a few recent experiences I have had with manuals for other equipment other than Toshiba but made in China and written in "Chinglish"!
Text excerpt from page 51 (click to view)
1.4 During a Conversation
2. To hold the current call and then talk to the new party
PT/PS
While hearing a tone
(CO)
OR
Press HOLD.
Press CO or INTERCOM. Disregard this step if both parties are extensions.
Talk to the new party.
SLT
While hearing a tone
5
0
C.Tone
Press Recall/hookswitch.
Enter
50.
Talk to the new party.
After talking to the new party (second call), you can disconnect (2.1) or hold (2.2) it and then retrieve the first call.
2.1 To disconnect the second call and then talk to the original party