Using a Mitel SX200 (the very old model- not an ML/EL/ICP). A voicemail card was not possible for this model, so we had been using a OS/2 Active Voice Repartee (7.48) for our voicemail. The key dongle is no longer functional, so we are in a situation where we have to replace this unit on a very limited budget. I have a 4 port Active Voice Lingo (AV1400)- which will definitely handle the job as far as ports and mailbox capacity (only 10 needed). But I have a question to connectivity to the Mitel SX200. The Repartee voicemail unit connected via COV- which is definitely the preferred method. My question is- is the AV1400 capable of this connection? I can not seem to find spec info for this model, as it is older tech. Can anyone confirm the compatibility for me?