VOIP PBX calling is cheaper because it uses packet based communication, which is identical to current internet communications. It allows a large volume of data to be sent over great distances very economically.
Yes you will need to have a broadband internet connection in your office.
You can make VOIP PBX calls over the internet but it’s no longer a requirement. There are VOIP IP PBX service providers that enable you to use your existing analog PBX system telephones.
Yes the quality is the same in many cases it is even superior to standard calling.
For VoIP PBX phone system installation any equipment you will need will be included in your start up price. You may need a VoIP gateway, these are usually installed in your telecom closet. Business packages may require the purchase of new office telephones or other equipment depending on your existing PBX equipment currently in place today.
Yes you can keep your existing business phone number, and port it over. Be sure to mention this to your PBX solutions consultant.
Yes if you have backup power to your internet connection when you lose power you lose the ability to make calls.
All VoIP Business phone systems will usually have this feature added in.
In many cases you will need to activate emergency calling services. VOIP calls use to lack the ability to transmit location data to emergency call centers however this is now avaiable.
VOIP calling automatically has caller ID, call waiting, voice mail and many other features built in. To take full advantage you will have to use the newer IP only telephones/networks.