[Freeswitch-biz] IP phones with built-in echo test

Hello, We are looking for IP phones with built-in echo test. Sevana provides products and services for voice and audio quality monitoring in telecom systems and IP phones with built-in echo test feature would be a great benefit for our customers matched with our voice quality monitoring solution or voice quality analysis technology. Looking forward to hearing from you soon. Best Regards, Sevana Oy, Finland/Estonia http://www.sevana.fi