Hi lads
Thanks for the posts
Sorry i took so long to get back to you
lines were pstn analouge trunks on a col card and programed as tk 801 tk802 and so on
was back at same site today customer upgraded to basic rate isdn i programed float keys on all sets except reception so now only the main set has flashing keys as they are programed still as tk keys
funny thing is that we install a good few of the mpd2 and ipex ver 3.10 and i never seen this happen on any of these systems.
The only difference that i know with this card is that it originaly had usa software on it which i replaced with
uk version but i have done that before on a few occasions with no problems