Program writing required

Employer
[no-member:pro]Andrey[/no-member:pro]
Project parameters
Type of cooperationOne-time project
SectionSoftware development
Prepaymentwithout prepayment
Payment methodsCash, Bank transfer, Electronic money
Acceptance of requestsfrom Feb 13, 2020 until Feb 28, 2020
Project description
Programmer services are required. Need a program for IP-telephony