netCall - Software for call via P2P + STUN Server

Hi guys how are you doing? :wave:

I want to ask you for your personal opinion.
I'm developing software in pure C++ with Win32API / GDI+ to make phone calls via P2P (PC TO PC) (without extern library) with a STUN Server. I'll show you some attachments:

Attachment 196204 Attachment 196205

The graphic style must be the Windows XP style, everything will be developed using the native Windows codec "WASAPI", to make phone calls at 8khz using the G.711 codec, traveling on UDP packets, using winsocket.

Now, I know that using a STUN Server will work in 80% of cases unless the user is connected to a Symmetric NAT or from Mobile Data, but it sounds great!

Anyway, what do you think? is it worth it? :confused:

Regards,
imchillato