Learn two different ways to conduct VoIP quality tests --- one's easy and free, the other requires expertise and a monthly ...

The VOCAL SIP Analog Modem Server, or SAMS allows a business to deploy a server in the cloud, which can work with the modern VoIP phone network infrastructure based on SIP and RTP, instead of ...

For some SIP servers, there may be additional information ... you can configure it with a SIP softphone app and start enjoying free VoIP communication.

That’s right: Facebook Messenger leverages the Facebook contact list to allow you to call your friends, for free, over the Internet ... in a mobile Facebook app. As for VoIP, the developers have ...