Good day!
We are intrested in your project very much! Our technical specialists can design and build VOIP softphone apps for IOS, Android and Windows desktop. We can do each of them with all the functionality you require. Everything clear for us so lets collaborate!
We are Smichrissoft - professional software developers. We focus on website development, E-commerce systems development, mobile apps, web design, and etc. We work in this sphere more than 3 years so we can offer you the best solutions.
You can have a look at our previous works in the portfolio which is attached to the profile.
Feel free to write us any time,
Best regards,
Smichrissoft.