6 Things to Know About VOIP
1) Internet connection
Its absolutely necessary that you have a stable and high speed Internet connection (such as a cable modem or DSL) in order for VoIP to work properly.
Since it relies on a broadband connection, power outages affect a VoIP phone service more than they would traditional phone lines (telephone companies have back-up generators in the case of a power outage, where as VoIP uses broadband modems and other equipment that is powered by household or office electricity). Ask your provider about backup power in the event of a power outage.
3) Emergency Calls
With location independence comes a few problems. One of which is an inability to locate users geographically. Therefore, emergency calls cannot be easily routed to a nearby call center with a VoIP system.
Its important to discuss with your provider encryption options in order to prevent eavesdropping and provide a secure line for your VoIP networks.
5) Caller ID
Support of Caller ID varies by provider. Some providers allow a caller to "spoof" the caller ID information (make it appear as if they are calling from a different number). Various VoIP equipment allows for easy modification of caller ID information as well.
Typically, VoIP providers offer unlimited minutes for a monthly fee. However, other costs can be incurred such as hardware installation (ranging from a simple telephone adaptor for a home office to more sophisticated hardware for an entire office network). It is important to ask what equipment is needed in order to be up in running with the configuration you have in mind.