VoIP services are ruling the traditional audio mode of telecommunication due to its ultimate flexibility, mobility and security. Internet telephony is based on packet switching protocol thus savings on those monthly telephone charges. For availing benefits of virtual PBX, a basic architecture of PBX server has to be set up. This VoIP PBX system includes one or more SIP phones, VoIP phones as well as VoIP gateways. The benefits attached with using an IP PBX system includes:

1. Reduction of call costs
2. Easy and efficient long distance or international calls
3. Easy addition of phone connections and extensions
4. Add-on advantages such as hot desking and roaming

The PBX phone systems are easy to install. They provides hassle-free usage and functionality over the traditional PSTN services. Importantly, with virtual PBX, users can reduce long term operation and maintenance cost. Users must opt for IP PBX providers, who offer feature rich benefits like voice mail, call forwarding, call transferring, 3-way calling, call conference, DID Management as well as customised reporting.