There are plenty of options avaible for a busniess phone without using your home phone service provider. Look in your local phone book or contact your local telephone provider to help you with this.
The Bluetooth device and the phone can still interact, yes.
Cheapest local phone service providers
You can get internet service through your local cable company without needing a phone line. For example, Time Warner Cable offers Road Runner internet, which does not require a phone line.
Local phone service can be obtained for free by using Ooma or Magic Jack.
The cheapest local phone service in NY is Verizon at $39.99 a month
No local phone service comes by phone. You could use something like skype.
Local phone service can cost between $10-$35 in Florida.
Quest and Verizon also provide local phone service with DSL.
It used to be difficult to purchase an internet service without a phone line. Now, it's not only doable, it's a common practice. When searching for an internet service, put "internet service without phone line" into Google. This will help narrow down the list of options that are available for internet services that don't require the purchase of an additional phone line. Next, put in your local zip code. Your town's local code will assist you in narrowing down the options that are available. To choose a good internet service, read previous reviews of the service that others have left, and ensure they're the service you'd like to work with.
If you do not have a phone line you can still get internet service at your home. Cable providers such as Comcast and Quest can both provide high speed internet access without ever having to install a phone line. Also, there are some internet service providers which operate using a satellite dish and require no installation or wires or lines.
Check the local phone book. If you do not have one, go to the library. You can always check online with one of the many search engines. Search line should read "Local phone service provider for (your city or county). There are several phone companie in every city. A phonebook or the internet can be a good place to find a local phone service provider.