One of the latest trends in PBX development is the VoIP
PABX, also known as an IP PBX, which uses the Internet
Protocol to carry calls. Most modern PBXs support VoIP.
However, recently open source projects combined with cheap
modern hardware are sharply reducing the cost of PBX ownership.
Functionally, the PBX performs three main duties:
• Establishing connections (circuits) between
the telephone sets of two users. • Maintaining such connections as long as
the users require them • Disconnecting those connections as per
the user requirement. • Providing information for accounting purposes.
Hosted PABX
A hosted PBX system delivers PABX functionality as a service,
available over the Public Service Telephone Network (PSTN)
and/or the internet. This means the customer organization
doesn't need to buy or install PBX equipment. Instead
of buying PBX equipment, users contract for PBX services
from a hosted PBX service provider like SWIFT NETWORKS Register
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