How to make a voip dilaer ?
Does Qt provide any API for the developer to ease their work related to VOIP services ?
I mean is it possible to take some helps from qt to make a dialer or Qt is only for building GUI application ?
I want just to know is Qt helpful in any aspects to follow and implement any protocol in the field of communication ?
You can build VoIP service using Qt. But Qt doesn't have any API for VoIP service. There is a commercial toolkit named VoIP Development Kit (VDK) for Qt development. Otherwise you have to use C++ libraries like jrtp, ortp, jthread to make such VoIP services. Don't blame Qt as a just a GUI builder. Qt is sometimes like limited work sphere. But it is more useful than just a GUI builder.
Thanks for the information