Chewy

Everything from sales, to my project manager, to the onsite techs and Network Engineers, to the trainers were fabulous. They each knew their craft and were able to resolve the issues that popup during phone system cutovers with blazing speed which was just amazing to my team. We are used to normal "tech support" where we are given the run around for 24 hours.
So what we did was switch two offices from analog and VoIP to iCore's VoPI (Voice over Private Internet). The HD voice is astounding. It is almost creepy as it sounds like the person on the phone is sitting right next to you talking in your ear. If you are not happy with your analog or VoIP solution, then setup a demo with these guys. You will be blown away! They also do video conferencing and list of other services. We do not take advantage of these services just yet, but it is nice to know that we are with a company that is not a one trick pony as far as telco is concerned.
The best feature of iCore was most definitely their people. Tech support that actually supports you and doesn't argue with you or try and tell you it's your issue and not their responsibility. Project Managers that keep you informed, keep deadlines, and help you work through the processes. And last but not least, Trainers that are personable and knowledgeable. They all seem to love their jobs and it shows in their work.
I would highly recommend iCore to anyone. They have great services, but more importantly awesome people which are a pleasure to work with.