Calling to mobile number

I have a site where I need to call client to his mobile number. In a short, calling to a client mobile from site using openvidu. Is it possible? How to achieve it?

Yes, it is possible by integrating an external SIP module. Here is some information: Phone calls integration - OpenVidu Docs

There is further information about this commercial module here: OpenVidu Telephony Integration - Naeva TecNaeva Tec

Do we need to purchase it? Can you arrange me a call to discuss about this

Of course. Please, write an email to commercial@openvidu.io to arrange a meeting.

Kind regards.