Make calls through telegram which will go through a SIP provider and asterisk api. You will have to use IVR and DTMF on the project as well. The necessary skills, langages and packages will be.
Sip trunks configuration
2 freelancer chào giá trung bình$500 cho công việc này
Hi Team, We have experience in Telegram API and asterisk API. SO we will do make calls with APIs.. But we need clear clarity about the calls from Telegram. Regards KABIS Site: [login to view URL] Skype: kabisforu