U


u-Law

The most commonly used companding (that is, COMpressing exPANDING) algorithm in North America and Japan, which has lower idle channel noise compared to a-Law companding.



Uninterruptible Power Supply (UPS)

A power backup device that allows network components to continue functioning in the event of a power failure.



Unity

The Cisco flagship converged messaging solution, offering a single repository for voice, e-mail, and fax messages.



Unity PBX-IP Media Gateway (PIMG)

A device that allows a Cisco Unity messaging system to be used in a legacy PBX environment.



user agent (UA)

A SIP device that contains call-forwarding intelligence, such as a User Agent Client (that is, a SIP device that places calls) or a User Agent Server (that is, a SIP device that receives a call).






Voice over IP First-Step
Voice over IP First-Step
ISBN: 1587201569
EAN: 2147483647
Year: 2005
Pages: 138
Authors: Kevin Wallace

Similar book on Amazon

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net