Some providers do support making calls over dial-up connections, but generally speaking a broadband connection such as cable modem, DSL, or T1 is desirable. You can use The VoIP Bandwidth Bandwidth Calculator to test your connection and estimate how many VoIP phone lines your connection can support based on the bandwidth requirements of popular providers.

Lowest monthly unlimited long distance plan from Voip.com is $19.95/month. Lowest yearly plan is $199/year

While evaluating your service, we will determine the correct bandwidth required for your number of employees and locations. The system will be provisioned and installed to ensure voice quality and the number of users and/or data being transmitted won't have an effect on voice quality. VoIP calls require 90Kb for the first and 64Kb (up and down) for each additional concurrent call. Most ordinary small office routers are capable of handling 5 simultaneous calls.

Quia strives to work well with as little bandwidth as possible. However, for optimal performance, we recommend that you allow 30-80 Kbps (kilobits per second) of bandwidth for each simultaneous Quia user at your site.

You can never have enough! The same advice people give for PC processor speed can be given for bandwidth: buy as much as you can reasonably afford, since nobody ever has "too much" bandwidth. One of the main factors though, is price.

Bandwidth is the key to ensuring that your website is visible to all your visitors. Whenever someone visits your site, data (text, images) flows from our extremely powerful web servers to your visitor's computer. Your bandwidth is the total of all data requested by all your visitors. The larger the files on your website and the more visitors you have, the more bandwidth you need. SiteXpress packages start at 250mb of bandwidth per month.

Yes, you would want to do so. If, for some reason, you don't want to, you may have a second data connection installed, and run your computer and VoIP phone on separate lines.

Latency is the length of time it takes for your words to be received by a listener at the other end of a phone connection, typically expressed in milliseconds. According to a white paper from Brooktrout Technology, latency starts to affect phone conversations when it exceeds 150 milliseconds each way, and is unacceptable when it exceeds 450 milliseconds (nearly half a second).