If your business premise is wired for DS3 (lit), then full DS3 can provide substantial savings for bandwidths over 12 mbps. If more than 12 mbps is needed but a full DS3 is not, fractional or burstable DS3 are often more cost effective options. However, with any form of DS3, the cost of build-out will be a reality if the building which will be served is not lit. Because the cost of build-out cannot be determined without much assessment by trained technicians, build-out charges are very seldom included with DS3 quotes. Most major providers will not endure the expense of build-out assessment until after the customer commits to a signed application. Commonly, if build-out proves to be too expensive, then the application is terminated without cost to the customer. Regardless of cost of build-out, because price per mbps for full DS3 is commonly less than half than price per mbps of T1, the resulting monthly savings compensates for DS3 build-out costs within a few months.
Data T3 is a 45 mbps (megabits per second) circuit. A data T3, commonly referred to as data DS3, is the equivalent of 28 T1s (commonly known as DS1s). T3 is commonly used for large: point-to-point (private line) circuits, MPLS (multiprotocol label switching) VPNs (Virtual Private Networks), internet traffic, VoIP call centers, video conferencing and broadcast quality video transmission. If the end user needs less than 12 mbps, bonded T1 (bonded DS1) can be a much less expensive alternative T3. Since a bonded T1 circuit only requires two pairs of phone lines, it can be installed free of charge to virtually any business location in the US. T3 however requires special wiring so if the business is not wired for T3 (lit), there will be extra cost for installation of T3. Alternatives to T3 include fractional T3, burstable T3, voice T3, and OC3.