I have VOIP phone lines - can I use CapTel?
You can use CapTel 800i with VOIP phone service (you also need high-speed Internet access).
You cannot use CapTel 800 with VOIP phone service if you are using CapTel 800 in 1-Line mode. The one telephone line must be analog.
If you use CapTel 800 in 2-Line mode, you can use VOIP phone service for Line 1. Line 2 must be analog.