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chanj
Voice over IP has imposed challenges to the quality of voice. The common ...
Agilent Technologies develops voice-over-LTE test system with Brüel & Kjær
Jean-Pierre Joosting
5/22/2012 5:08 PM EDT
Agilent Technologies has announced that the Agilent PXT wireless communications test set is now available for testing voice quality on Voice-over-LTE (VoLTE) 4G phones with the Brüel & Kjær PULSE audio analyzer and Head and Torso Simulator (HATS).
Transporting voice over a packet-based LTE cellular infrastructure poses challenges that make voice-quality testing essential. The Agilent and Brüel & Kjær solution combines standards-based test methods with real-world base station emulation, RF test and functional test to ensure that VoLTE phones will meet user's expectations.
The Brüel & Kjær PULSE audio analyzer and HATS system support testing based on commonly used international standards such as ITU-T P.862 PESQ, 3GPP2 and 3GPP audio test specifications.
The Agilent PXT wireless communication test set represents a significant breakthrough in testing LTE user equipment. It incorporates flexible base station/network emulation, RF parametric and functional tests into one integrated unit. Used with the company's E6966A IMS-SIP network emulator software, the PXT enables VoLTE phones to make end-to-end voice and video calls using a wide range of industry standard codecs.
http://www.agilent.com
http://www.bksv.com
This article originally appeared on EE Times Europe.
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chanj
5/27/2012 5:01 AM EDT
Voice over IP has imposed challenges to the quality of voice. The common parameters are delay, jitter and packet loss. The nature of wireless may further push the parameters to an undesirable zone. Delay and packet loss could jump up. Using different codecs may be able to relieve the call quality issue. What's the innovative method to improve voice quality?
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