By Golly, this forum should be able to provide you with enough confusing propaganda to keep you busy for a year or so.
There is no quick answer to your question. You mention the things you want and every better PBX provider will give you that. Hence, those are not determining characteristics. In some the features are provided in such a way that you are locked in and cannot progress to newer features and technologies over the next few years, others anticipate advancements and leave room for new stuff. Some have a reliable track record, others provide no follow-up service. Only if your consultant can sit down with you and discuss these issues to find out what really are the determining factors for you and how much extra you are willing to pay for those determining factors, can you hope to get an answer that will help you. Cheerio, Vic Boersma
