Hello, I have experience with integration between several Open-Source IP-PBX (Cloud or On-Premises) and Bitrix24
And I have many solutions to avoid (bypass) the VOIP (SIP) traffic restrictions in UAE and all Arab countries
Let us discuss your requirements today
Note: I will provide my offer after know all your requirements and it will be a fixed price (not per hour) and it's depending on your discussed requirements.
Regards,
Momen Amin
+201025330104