VOIP SWITCH INTERNATION CALLING APP

VOIP SWITCH CONFIGURATION AND INTEGRATION TO A MOBILE CALLING APP I'm a lone developer, looking to do an international calling app. The main service will include, Pinless Calling Cards, International Mobile Top-Up, call any number without having to dial the DID number first, basically provides the services of VOIP calling. I am seeking the technical expertise of someone familiar with voipswitch softswitch on a Freelance basis. Main Task to accomplish • Develop (No design needed, a simple structure will do) a flutter app for VOIP International Calling. I'm looking for a developer who can just create a flutter application that will run on both Android and ios devices, for voip pinless calling which will be intergrated with voipswitch server. • Customer signup form customization and integration. (easy to signup, confirmation to client via SMS OTP.) • Online store where one can recharge and topup. • Integrate International Mobile Top Up and Configure rate sheet display in multicurrency • Secure windows and voipswitch Experts of VOIPSWITCH, VSM, VSPORTAL please contact me. Skills: FLUTTER(DART) PLEASE CONTACT ME ASAP, SO WE DISCUSS FURTHER