There are two sections to the trunk id, group number and timeslot. In logger configuration table set the logger to Trunk / Time Selective.
Trunk 1 always = 0
Timeslot 1 is made up of group number and then member number. Member number is not 1 - 30, it is as follows where the first two digits are group 14 and the last two digits are the related member number:
1404 - timeslot 1
1408 - timeslot 2
140c - timeslot 3
1410 - timeslot 4
1414 - timeslot 5
1418 - timeslot 6
141c - timeslot 7
1460 - timeslot 8
1444 - timeslot 9
1448 - timeslot 10
144c - timeslot 11
1450 - timeslot 12
1454 - timeslot 13
1458 - timeslot 14
145c - timeslot 15
14a0 - timeslot 16
1484 - timeslot 17
1488 - timeslot 18
148c - timeslot 19
1490 - timeslot 20
1494 - timeslot 21
1498 - timeslot 22
149c - timeslot 23
14e0 - timeslot 24
14c4 - timeslot 25
14c8 - timeslot 26
14cc - timeslot 27
14d0 - timeslot 28
14d4 - timeslot 29
14d8 - timeslot 30
The last two digits will always be of this format and be these numbers, the first two numbers will be different depending on trunk group (or trunk loop, I'm not sure exact Nortel terminology) number.
Sample of what logger definition for nortel symposium should look like
Recorded
Device
Channel Type Trunk 1 Timeslot 1
1 Trunk 0 1404
2 Trunk 0 1408
3 Trunk 0 140c
4 Trunk 0 1410
5 Trunk 0 1414
6 Trunk 0 1418
7 Trunk 0 141c
8 Trunk 0 1460
9 Trunk 0 1444