Private Mobile eXchange (PMX)
Mobile communications when and where you need it
Private Mobile eXchange (PMX) enables the creation of a Private Mobile Network, that is a secure and private GSM network able to be used as an alternative to the macro GSM network.
Private Mobile eXchange (PMX) enables mobile phones to become part of a company voice and data networks while in the vicinity of the workplace, similar to the standard telephone handsets on the desk. It is the heart of a private mobile network and means that mobile phones can be used to make calls from the workplace for the same cost as calling from an internal telephone extension. Staff can call colleagues at the premises, or on-net over the corporate network, without incurring any call costs and mobile calls from the office to external destinations are charged at the company’s normal landline tariff.
Private Mobile eXchange enable a Business to deploy mobile networks into remote regions or isolated user communities where network integration and infrastructure costs would otherwise be prohibitive. This is particularly suited to mining, shipping and tactical deployment situations. A standard mobile phone can be used in environments where there is limited or no coverage which would normally render it useless. PMX integrates with any 2G mobile phone and any PBX type.
PMX Operational Functionality
PMX creates a self contained, privately owned and managed mobile network based on standard GSM protocols. This enabling technology allows an organisation to manage staff mobile phones on the corporate telecoms infrastructure. The solution comprises both hardware and software components. The hardware requirements include:
- mobile phone access points, known as BTS (base transceiver station) units.
- a base station controller (BSC) to manage the BTS.
- an industry standard server to run the PMX software.
The PMX software consists of three software components: a mobile switching centre (MSC), translation and routing database and a short message service centre (SMSC). The PMX includes a forth option to provide GPRS using an industry standard GSN (GPRS Service Node) In order for PMX to connect conventional mobile phones to most legacy PBX equipment, a hardware gateway is required to convert between protocols. PMX is able to use industry standard gateway that convert from SIP to protocols such as DPNSS and Q-SIG.
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