I am just starting to read into voIP and it's advantages. I help an office of 6 employees. The manager of the office was complaining about their high phone bills every mont which got me thinking about possibly implementing some kind of voIP solution for them.
But there are still some aspects of it I am trying to get sorted out. Currently they have a Bellsouth PSTN system. Also they have DSL for their broadband connection, it's about 1 down and about 270 up.
Do they need bandwith better than DSL to have constant high quality voice conversations?
Would they still need their Bellsouth PSTN system in order to call other PSTN customers, or could they do away with Bellsouth alltogether(save for the one line the DSL is on) and go with some voIP service company and still be able to make voice calls to PSTN users?
If they were to go with a voIP service, I take it they would have to get new phone numbers?
And as far as phone numbers, do they have to pay for each phone number that they have if they used a voIP service company? Would they need multi line IP phones to utilize having several phone numbers with their voIP?
Generally, how does a voIP service company assign a telephone number to the customer utilizing the service. If a PSTN user wants to call the user using the voIP service, do they just pick up their PSTN phone and dial the number of the voIP user?
Is voIP really practical for an office such as this one? Thanks.