FileMaker pro compared to MS access FileMaker server plays the role ms SQL does. For 1000 users, you need a client/server architecture. So your question is about choosing the DB server and the frontend. In the long run, MS SQL has more acceptance in enterprises than…

Avaya offeres controller less AP. This design is not appropirate for romaing. My reserches has show that Androîd and Ios devices does not roam very well between AP. For data connumications it might be acceptable. but for Voice over IP apps such as Skype, forget it.