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IP PBX

   Also found in: Financial, Wikipedia 0.02 sec.

IP PBX

(Internet Protocol Private Branch eXchange) A telephone switch that supports voice over IP (VoIP). IP PBXs convert IP phone calls into traditional circuit-switched TDM connections for the PSTN. They also support traditional analog and digital telephones, allowing enterprises to migrate slowly to an all-IP telephony environment. See IP telephony and PBX.

IP PBXs and TDM PBXs
This illustration contrasts a traditional PBX and an IP PBX that serves IP phones only. In practice, IP PBXs also support legacy telephones.



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? Mentioned in ? References in periodicals archive
 
CEDAR RAPIDS, Iowa -- McLeodUSA Incorporated, one of the nation's largest competitive providers of integrated voice and data communication services, announced today that it has introduced an advanced solution for business customers by providing voice and data services that includes direct VoIP (Voice over Internet Protocol) peering between a customer's IP PBX and the McLeodUSA network.
McLeodUSA Introduces Advanced VoIP Communication Solutions for IP PBX ... by Business Wire
Partnership provides the award-winning Sphericall IP PBX to a wide range of CXtec's education, healthcare, and enterprise customers
Sphere Communications and CXtec Announce Partnership to Deliver ... by Business Wire
Revenues, Customers and International Expansion Continue to Grow as IP PBX Market Education Increases within the SMB Community
Switchvox Extends Market Leadership in 2006 with Record Revenue ... by Business Wire
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