More information. The only Line card 3180/5180 did not have a caller id daughter board card. However after purchasing a new 3193/5193 cid card, I find that we still have no CID.

Checked programming 490. Before insertion of card, it allowed me to make changes of FSK , visiual, or dtmf on port 2. Even after inserting card onto the only line card in this tda-50 I stlll show cid settings available only on port/slot two.

Is this normal. ? Any initializing sequence needed ?

BUT NEVER CID on phones.

Any experience with bad line cards that wont show cid but work great otherwise , or bad cid cards out of the box?

Thanks!