OnSIP is a real-time communications company that specializes in hosted VoIP solutions. The company offers its customers powerful yet simple phone solutions that come with included features and a BYOD option. Their hosted VoIP solutions give users the options to scale their phone system as needed, so that the phone system can grow with a business. OnSIP also makes it easy to utilize the best of your IP PBX through their SIP Trunking and Hosted VoIP solutions.
We have been with Onsip for over a year and love it - there have been some hiccups along the way but all easily fixed and the support has been excellent. One of the reasons we got on board was pricing so I was afraid the quality might not be there, but it's been great. Also I love the new desktop app that they have introduced so you don't have to use through your browser when doing softphone calls.