How to make a phone call in Java EE

Is开发者_如何学运维 there a way to make a phone call in Java EE? Making a call, ending it, etc.

Just like we can SMS using some sites for free like way2sms, is there a way that i can make a phone call for free?

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Well given that there are VOIP systems out there, which simply use a network protocol like SIP, all you really need to do is find a SIP library for java, and yes what you're trying to do can technically be done. For free? Depends on if you can find a VOIP provider that gives you free calls. My guess is no.

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Twilio provides APIs to handle voice calls, VoIP and SMS. They use RESTful APIs, so it should easily be usable from Java as well.

They don't actually provide free services, but their prices might be cheap enough.