The simples case is this. You have a small company with two phone lines, and a total of four phone extensions. You get by right now with two-line telephones, with a "Hey Sam, line 2" intercom. For Internet access, you have DSL from the phone company. What would it cost to put in an IP PBX, and what would that look like?
We would recommend business class Internet service from the cable company. Our experience has been that business class cable is far more reliable than DSL. If cable is not available, then we recommend Clear We also recommend that you obtain two SIP trunks from a SIP trunk provider. (We can help you find the right provider, if you wish.) As for equipment, you will need one IP PBX base unit, four IP telephones, and a POE switch. (Of course, we provide all of these, if you chose to purchase them from us.) The economics will look like this:
| Current | IP PBX | ||
| Annual phone line charge | $1,320 | $720 | |
| Annual Internet access charge | 840 | 960 | |
| Total Annual Cost | $2,160 | $1,680 | |
| Annual Savings | $480 | ||
| IP PBX system cost | $1,990 | ||
| Total payback time | 4.15 | years |
For a slightly larger firm, with four phone lines and six phones, the savings add up even quicker.
| Current | IP PBX | ||
| Annual phone line charge | $2,640 | $1,440 | |
| Annual Internet access charge | 840 | 960 | |
| Total Annual Cost | $3,480 | $2,400 | |
| Annual Savings | $1,080 | ||
| IP PBX system cost | 2,290 | ||
| Total payback time | 2.12 | years |
Now suppose your company is even larger: ten phone lines and 25 telephones:
| Current | IP PBX | ||
| Annual phone line charge | $6,600 | $3,600 | |
| Annual Internet access charge | 840 | 960 | |
| Total Annual Cost | $7,440 | $4,560 | |
| Annual Savings | $2,880 | ||
| IP PBX system cost | 5,140 | ||
| Total payback time | 1.78 | years |
| Current | IP PBX | ||
| Annual phone line charge | $6,600 | $5,760 | |
| Annual Internet access charge | 960 | ||
| Total Annual Costs | $6,600 | $6,720 | |
With economy of a T1 line, SIP lines, and business class
cable service is about the same cost. Where is the economy? In
this case, the telephones will be consuming a large portion of the
Internet bandwidth, and the employees will probably be complaining about
the Internet speed. The only way to get more speed is to put in
another T1 line. At the cost of that line, the IP PBX will pay
back the $9,000 cost in about one and a half years, plus will provide faster Internet access, to boot.
Have we convinced you? Are you ready to buy? Contact Us and we will get you started on savings right away.
Have we convinced you? Are you ready to buy? Contact Us and we will get you started on savings right away.

