IP Phone Systems
An IP PBX phone system allows you to switch calls between VoIP (voice over Internet Protocol or IP) users on local lines while allowing all users to share a certain number of external phone lines.
A modern IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does.
IP PBX and Traditional PBX Systems
With a traditional PBX system, separate networks are necessary for voice and data communications. The main advantages of an IP PBX are the fact that it facilitates converged data and voice networks. This means that internet access, as well as VoIP communications and traditional telephone communications, are all possible using a single line for each user. This provides flexibility as your business grows, and can also reduce long-term operation and maintenance costs. Like a traditional PBX, an IP PBX is owned by the business-you may still have digital and PSTN lines in place, but the PBX identifies what to use, when and how.
One of the key advantages to IP telephone systems is that whereas long-distance calls on a regular phone system can be cost prohibitive, the same calls on an IP phone system are free -- there are no fees beyond the cost of Internet access.
Advantages of VoIP Technology
VoIP reduces cost for equipment, lines, manpower, and maintenance. All of an organisation's voice and data traffic is integrated into one physical network, bypassing the need for separate PBX tie lines. Although there are initial setup costs, significant net savings can result from managing only one network and not needing to sustain a legacy telephony system in an increasingly digital and data-centered world. Also, the network administrator's burden may be lessened as they can now focus on a single network. There is no longer a need for several teams to manage a data network and another to manage a voice network. For consumers, VoIP reduces the charge of subscription or usage, especially for long distance and international calls.