It is possible to hook up the BasicTalk box to your homes internal wiring to 'light up' the other phone jacks in your house. Just make sure your internal wiring is disconnected from the phone companies wiring (VERY important!), the junction box for this is usually located outside near the electric meter in most single family houses, in a condo or apartment it could be in a different area. It is VERY important to make sure your wiring is still not connected to the phone companies wiring, if not you could ruin your BasicTalk box and the warranty would not cover this. If your not sure about this either have a friend who is sure/ professional electrician hook this up or do not attempt.
Additionally make sure to abide by the 5 RINGING phone limit, multiple cordless phone systems with 2 or more phones (ringing or not) working off 1 base unit count as 1 ringing phone under this formula. You can have as many non-ringing WIRED phones as you want (literally!).
The only phone service you'll have is on the one that's connected directly to the BasicTalk router. The other phone outlets in your house won't work. To have phone service in multiple rooms, purchase a multi-phone system that has a single base station (which would be connected to BasicTalk) and satellite phones that take a wireless signal from the base station. Walmart sells several that are relatively inexpensive (my local store, for instance, has one with 3 phones that goes for about $40).
To use BasicTalk phone service you need a high-speed internet connection, a router, and the BasicTalk box to get started. For installation instructions please refer to the installation instructions on our website - https://support.basictalk.com/app/center/technical/. You can use multiple phones with the service, although not more than 5. For more information please see the Support section on our website, https://support.basictalk.com/app/center/technical/