We have used Clearswitch for 10 years as our business PBX supplier. In that time, we have not had one single outage, and call quality has been consistently excellent. Instead of using the high priced "per seat" pricing model that most telecom providers charge, we save money with Clearswitch by using their "per minute" and individual phone number pricing. Would highly recommend!
As a large telco operator, we were looking for a no nonsense termination and DID provider that was easy to work with and had redundancy built in to their service. After testing a number of providers, we chose Clearswitch for their call quality and price structure. Must ad they are great guys to work with as well.
We needed a website which would truly represent the quality, brand, and reputation of our company. That's when a colleague suggested Clearswitch. We contacted them via email, and they got back to us immediately. We then went on to have Clearswitch create our website, and we couldn't be happier. I wouldn't hesitate to suggest Clearswitch for your technical needs.