Hi Greeting !!! I am kaushik saha from Discreet Solutions Pvt LTD. India We want to install you're VOIP OS in a home router which should be cost effective . Home sip server is use for following use : 1. Audio and video extension calling 2. Remote extension Audio and video calling 3. DTMF tone 4. Maximum extension required is 10 5. Status If you have any solution which fulfill our requirement plz let me know Regards Kaushik saha