Thanx Corel. For some reason one of salesmen here seems to want to sell them on hotel sites claiming that the cost per mailbox is cheaper than the InMail. I suspect he is getting a license deal from NEC to try and move their backlog of these voicemails.. The techs hate them.
I believe the UM8000 and it's stand-alone counterpart, the UM4730 are the only voicemail systems that NEC sells that are Hotel/Motel specific.
I don't think they have anything else that will integrate with a PMS system.
And like most other systems, they are a pain to work on until you get a few under your belt.