If you compare IP PBX with the traditional PBX which used traditional circuit-switched PBX to implement the principle functions of PBX you achieve the same functionality with high standard call Quality and Reliability. The Real PBX offers these features because it is built on open code, which reduces the high equipment, maintenance and upgrade costs.
Business Hosted PBX:
The Real PBX is inexpensive, as compared with traditional PBX which requires expensive dedicated digital telephone.IP PBX scalability, and when needed on the expansion of the existing PBX telephone number of branches, while the old PBX equipment does not support this sort of expansion,which is very expensive, and with IP PBX it is carried out with minimum IT investment. The Real PBX has attractive advantages for instance it can use its VoIP capabilities with a local call prices for long distance calls, highly effective, cost savings specially in long distance communication.
Large commercial corporations top the end-user list for pure IP PBX systems, as stated by the new market research report on IP PBX market. Where as, Public sector, with large installed digital and analog phone base has the largest end-user of hybrid PBX systems, which allows them to benefit the Next Generation IP solutions without replacing their existing systems.Riding on this positive note, global market for Hybrid PBX-VOIP is expected to grow significantly by the year 2012.
To conclude with, as Hosted PBX / Voip is in full 'Boom', within couple of years the traditional heavy phones will be a history and the coming generation will move forward with flexibility and freedom to call any where without any hassel and above all without investing much, you are connected to any where with high reliability and flexibility.