i found old instructions on adapter
on the back there is a small plastic screw
driver
on the instructions it says
if your phone looks like this set to 1
like this 2 etc and pictures of old round
handset is -1 a shape like merlin -2
a shape like newer euro partner or nortel -3
it also showed a small pot to adjust out going volume on your headset
this on the m10 -12 not the merlin headset
adapter covered above


[This message has been edited by KENB (edited January 02, 2005).]