IP Centrex, the alternative for a PBX

Traditional Centrex services, the telecommunications company hosts the PBX functionality in a telco switch, have never really taken off, but now better and more interesting enhanced services are possible over a hosted IP telephony infrastructure.

IP-PBX

Web interfaces to program the PBX functionality gives better control over the PBX installation, the IP-PBX is scalable, remote offices and home workers can be on one IP-PBX system, integration with desktop productivity applications like the outlook address book, call logs of faxes, voice mail and e-mail with the IP-phone adds value. New phones for new employees can be added on the fly. Abbreviated dialing between branches (2, 3 or 4 digits).

"On-net" dialing eliminates call costs between offices. Interoffice calls account for approximately 70 percent of all voice traffic in a typical large enterprise (Probe Research).

Hosted IP Centrex services is for large enterprises attractive the CAPEX needed for multiple IP-PBXs can be converted into OPEX by using a service provider.