Hello,

Have OS7200-S, rev 4.75, 2-Uni cards with DLM TRM SLM. 20+ Keysets(going away), 8 POTS, 1 analog, 4 port VM. Customer moving and setting up new office with 25 5 button IP sets from another office. Six MGI's are not going to cut it. We have a MGI 16 card that appears is not going to work for this app. Looks like we need an OAS card? Is this correct? Do we need to buy MGI licenses for the OAS? Thank you.

Gary