ESI Communications Server models include ESI-1000 to the ESI-50 for companies ranging in size from SMBs to enterprises. ESI Communications Servers support both digital technology and IP-to-the-desktop in any combination. ESI’s business communications systems are sold through factory-trained Certified Resellers.
The Broadvox GO! SIP Trunking offers unlimited local and long-distance calling as well as discounted toll-free and international calling. It also includes DIDs, E911, LNP that allows businesses to keep their current phone numbers, and Enhanced Local Numbers. Broadvox connectivity options include DSL, T1 and DS3.