Make free SIP calls to other Siphon users and cheap global calls with Siphon SIP, a voice over IP software
Siphon SIP is a versatile voice over IP (VoIP) software for making high-quality internet calls. It utilizes the SIP protocol which is an open standard used by many VoIP providers and softphones.
Some key features of Siphon SIP include:
Siphon SIP aims to provide a reliable, flexible and affordable VoIP solution for both individual users and businesses. It can replace traditional phone services and integrate with common office software and systems. With free internal calls and low international rates, Siphon makes staying connected simple and cost-effective.
Here are some alternatives to Siphon SIP:
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