REPLY TO CHRIS:

I found out that:

a) 1-5-13 was set to "NO", changed it to "YES"
b) 1-5-26 was set to "OUT", changed this to "ALL"
c) LCR is off (I think)
d) SMDR is on
e) don't know if 7-1 (card interface slot assignment) is correct (more on this below)

When I changed 1-5-13 to "YES" I got the message (on the phone LCD) "PRINTER TROUBLE" along with beeping (some response at last!) -- which went away as soon as I re-connected the PC.

However, the only output on screen is the following:
€€€€€€€€€€€€€€€€€€€€€€€

Are these non-ASCII values? So I think I still need to do something to get readable output.

The rest of the values I found are as follows:

1. Memory Block 1-5-02 (SMDR Print Format) to select ALL (default) to print all digits or MASK to hide the last four digits of a telephone number.
---> 02:FORMAT ALL

2. Memory Block 1-5-13 (Printer Connected Selection) to assign a Printer for SMDR to operate.
---> 13:PRINTER NO (I changed this to YES)

3. Memory Block 1-5-14 (Printer Line Feed Control Selection) to select
Printout with (default: YS) or without a return (NO).
---> 14:LINE FEED YS

4. Memory Block 1-5-25 (SMDR Valid Call Time Assignment) to specify the SMDR Valid Call Time (default: 040s)
---> 25:SMDR TIM=040s

5. Memory Block 1-5-26 (SMDR Incoming / Outgoing Print Selection) to assign SMDR to output incoming calls (INC), outgoing
calls (default: OUT), or ALL Calls.
---> 26:PRINT MOD=OUT (I changed this to "ALL"

6. Memory Block 4-56 (SMDR Telephone Print Selection) to specify whether (default YES) or not (NO) a call record is printed for
the specified station (S5000 or higher and MIFM Software Version 3.00 or higher).
---> 01/56:PRT OUT YS

7. Memory Block 7-1 (Card Interface Slot Assignment) to specify the required MIFM-U( ) ETU (I didn't understand this)
---> 1 09:NON
---> 1->01:NON (the arrow is blinking)

8. Memory Block 7-3-01 [MIF (LCR) Assignment] to specify LCR.
---> 01:LCR MIF=00

9. Memory Block 7-3-02 [MIF (SMDR) Assignment] to specify SMDR.
---> 02:SMDR MIF=01

10. 7-3-02 needs to be set
---> 02:SMDR MIF=01

11. are the phone ports set to print out smdr? program 4-56 if not.
---> 01/56:PRT OUT YS
---> 02/56:PRT OUT YS
---> 03/56:PRT OUT YS
---> 04/56:PRT OUT YS
... and so on ...

12. Printer Line Feed Control Selection 1-5-14
---> 14:LINE FEED YS

13. SMDR Print Format 1-5-02
---> 02:FORMAT ALL

14. COM Port Baud Rate Setting Assignment 1-8-35
---> 35:BDRT 1=38.4

15. Start Time Selection 1-1-05
---> 05:CALLSTART 10s

---------------------------
REPLY TO NEW2NEC

1. 7-3-02 shows

00:ACD MIF=00
01:LCR MIF=00
02:SMDR MIF=01
03:UCD MIF=00
04:CLASS MIF=00

I guess this means my SMDR is set, and everything else (LCR) is not set.