You must use two caller ID units if you
want to use caller ID for both lines. You
must also purchase a triplex adapter.
1. Plug the triplex adapter into your two-
line modular wall jack.
2. Plug your two-line phone into the
two-line receptacle on the triplex
3. Plug each caller ID unit into a single-
line receptacle on the triplex adapter.
4. Connect the AC power supply for