Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
Good list of manuals. I found a very rare one and easily get. Should be promptly to download, as we must to wait hours even after confirmed payment.
Text excerpt from page 9 (click to view)
Intercom
Using the Intercom (if there are at least 2 handsets)
This feature allows you to make free internal calls, transfer external calls from one handset to another, use the conference option and the babysit feature (room monitoring).
Internal call
Press to call the selected handset + handset number (for example Hang up. Note: if the handset does not belong to the Philips DECT 521/525 range, this function may not be available. ).
.ast call transfer when on line
During a call you can transfer the call without waiting for the other handset to pick up. All the handsets will then ring. Press to call the other handset. Hang up. Note: the person on hold hears music. A press on allows you to switch between the 2 calls.
Call transfer to a specific handset when on line
During a call you can transfer the call to a specific handset. Press to call the selected handset + handset number (for example Hang up. Note: the person on hold hears music. A press on allows you to switch between the 2 calls. ).
Call transfer via the in-call options
During a call you can transfer the call via the in call options. Press to enter the options (with handset 1). Scroll to Intercom and press to select. the one you want to transfer the
If there is only one additional handset, it rings automatically. Otherwise: Browse through the handset list and select with call to. 8 Intercom