Voice Services — Local and long distance phone service options including business lines, voice-only PRI, Super Trunks and SIP VoIP all with many dozens of enhanced features, plus a wide array of mobile voice equipment and calling plans.
Hosted VoIP is another term for Hosted PBX. "Hosted" means to say that the hardware and PBX is hosted at an off-site location from where the VoIP telephone service is being used. An office can have VoIP telephone service that powers their phones in the office, but their PBX could be hosted at their VoIP providers data center, thus the term: hosted VoIP.
Premise BASED solutions
Premise-Based systems can be digital, VoIP or a hybrid of both. While many companies want to take advantage of the collaboration, productivity, and mobility solutions VoIP offers, hybrid Digital/VoIP systems (such as the Mitel 5000 system popular with thousands of businesses, including many ETA customers) offer a phased migration path to VoIP for companies without the financial or personnel resources to make the transition all at once.