"ISI Communications made our transition to VoIP easy and transparent. They understood how we conducted business, and made a recommendation based on this info. We are very happy with our Epygi Quadro 16X IPBX and iSIP VoIP service. We orginally had 8 numbers from Vonage, and they were able to port over the numbers and offer us an unbeatable price point. I highly recommend ISI for any company that is looking to embrace VoIP for their company."

-Sean Calvillo, GM TriTek Solutions NYC-