Digium Wildcard TE407P card has a built-in hardware echo cancellation, based on a powerful digital signal processor. Board supports E1, T1 and J1 interfaces, which can be configured for each interface or the entire board as a whole.
The Home Phone system is the solution to saying goodbye to your traditional phone company and to immediately start saving money. Seriously! You can literally save hundreds of dollars every year by using the Home Phone system.