The iWorx App for the Allworx 6x and 24x business phone systems. You get enterprise rich features with an easy to manage VoIP solution. Tom Grinde mentions the HD sound, remote phones, and unlimited SIP lines depending on your bandwidth.
SIP (Session Initiation Protocol) Internationally recognized IP telephony signaling protocol used for VoIP. This is the most widely used protocol in the market and is a standard meaning anybody who builds a SIP 2.0 compliant product should work with any other SIP 2.0 compliant device. For instance our xBlue SIP module is compliant so any off the shelf SIP phone will work as an endpoint for a home phone or a remote worker. The trick with SIP 2.0 is that the combined devices will work to the feature set of the lowest common denominator meaning a SIP 2.0 telephone only support 80% of the SIP feature set then even though the telephone system supports a higher set of features, you will only have the base features of the phone.
VoIP (Voice over Internet Protocol) This is simply the carrying of voice via IP meaning a standard voice stream is broken into packets at the transmit end, sent over a standard data network (such as the Internet) and reassembled into a voice stream at the receiving end. VoIP traffic is trickier than normal data traffic because the timing of packets on the receiving end is critical. For more detail see Basics of the Internet.
I will look to these guys first for all of my telecomm needs in the future. While they are in NY and I'm in GA, they still manage to be more accessible than the local guys to answer my questions.Eric Lichtfuss