From snom 300 to snom MeetingPoint: snom's portfolio of cutting-edge SIP-based telephony devices are recognized for their rugged commercial grade performanc... In fact, it is the tremendous savings of up to 80% off traditional phone calling that makes VoIP attractive to consumers and businesses. The only equipment needed for VoIP is your PC and a microphone (if one is not built into your PC). Beware of VoIP service providers that require you to purchase additional equipment and/or sign contracts. Most importantly, business that manage calls over the IP PBX VoIP solution provide comfortable integration with existing PSTN telecommunication system.