Learn about VoIP with this VoIP FAQ

For the past 50 years companies have been using conventional PBX & telephony systems which require separate networks for voice and data communications. But with the new VoIP telephony revolution, businesses are quickly migrating to VoIP PBX systems, which offer the huge advantage of converging data and voice networks.

VoIP, which stands for Voice over Internet Protocol, is basically the transmission of voice traffic over IP-based networks. Initially designed for data networking, the Internet Protocol (IP) was adapted to voice networking following its successful positioning as the global standard for data networking.

With VoIP phone systems users are not limited to making and receiving calls through the IP network. Traditional phone lines can be used to guarantee a higher call quality and availability. With the use of a VoIP gateway incoming PSTN/telephone lines can be converted to VoIP/SIP. The VoIP gateway allows the user to receive and place calls on the regular telephony network.

VoIP PBX systems provide mobility to employees, flexibility when a business expands as they are much easier to manage than the traditional PBX, and can also considerably reduce telephony administration costs.

Frequent questions about VoIP and much more are all covered in this VoIP FAQ.


Hosted / Virtual / Cloud How does Fax work with VoIP Other Protocols
Arrow What is a Hosted PBX? Arrow What is T38 fax? Arrow What is RTP?
Arrow Hosted PBX Vs On-Premise Arrow What is FoIP – Fax over IP? Arrow What is SDP?
Arrow Hosted PBX Provider – What to look for Arrow FAX Work in VoIP Environments Arrow What is H323?
Arrow A Hosted PBX for your business? Arrow What is Fax to Email? Arrow What is RTCP?


General Info (IP PBX & VoIP technology) All About SIP Features and Benefits of an IP PBX
Arrow What is a PBX Phone System? Arrow Can you List all Known SIP Responses? Arrow What is an Auto-attendant?
Arrow What is Voice over IP? Arrow What are SIP Phones? Arrow Benefits of an IP PBX VoIP Phone System?
Arrow VoIP-Defined Arrow SIP Call Session Between 2 Phones Arrow How an IP PBX / VoIP Phone System Works
Arrow IP PBX, SIP & VoIP FAQ Arrow What SIP-based IP PBX’s are Available? Arrow What is IVR?
Arrow Learn About VoIP Gateways Arrow What is a SIP Server? Arrow What is DID – Direct Inward Dialing?
Arrow VoIP Definitions Arrow Sip Phones / VoIP Phones Types Arrow What is a Voicemail System?
Arrow What are IP Phones / IP Telephones? Arrow What is SIP? Arrow 10 Reasons to Switch to an IP PBX
Arrow What is a STUN Server? Arrow What is SIP Forking? Arrow What are the Benefits of an IP PBX?
Arrow What is ALG? Arrow SIP Methods / Requests and Responses? Arrow What is Unified Communications?
Arrow What is a VoIP Telephone? Arrow What are SIP Trunks? Arrow What is Voicemail to Email?
Arrow What is a Good Source of VoIP Info? Arrow What is a SIP-URI? Arrow What are BLF Function Keys?
Arrow What is IP Telephony? Arrow 3CX’s Unified Communications features


Other Functionalities Legacy Technology (ISDN)
Arrow What is ECHO Cancellation? Arrow What Do FXS and FXO Mean?
Arrow What Does ENUM Mean? Arrow What is a TDM PBX?
Arrow Different Types of CODECS?


These FAQ’s are also available in:

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