GL enhances its Voice Quality Testing Solution

By siliconindia   |   Wednesday, 23 June 2010, 01:40 IST
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Bengaluru: GL Communications has announced the release of its enhanced Voice Quality Testing Solution - that provides an excellent a platform to measure voice quality over any type of network. Robert Bichefsky, Senior Manager at GL, said, "Communication devices of all types are capable of voice - such as PCs with softphones, conventional landline phones, mobile VoIP phones, and mobile wireless phones. They can interconnect using 2G, 3G, and 4G wireless networks, landline TDM networks, and IP networks - all with varying impairments. As a result, end to end voice quality is more variable and more important than in the past with a homogeneous network". GL's Voice Quality Testing Solution provides one test platform no matter the network and no matter the interface (Analog, Digital, or Wireless). It provides connections for all wireless phones, whether operating on GSM, CDMA, WiMax, or FemtoCell. Connection to a mobile device is possible via Bluetooth or a headset jack. VoIP connections are supported for ATAs, Media Gateways, or SoftPhones. Other supported interfaces include T1 E1, 2-Wire analog, and Push to talk radios. This versatility is provided through a "universal telephony adapter", or Dual UTA (two ports of each type) and VQuad software capable of TDM, Wireless, and VoIP signaling and interfacing". Bichefsky added, "Once end to end connections are established, both Voice Quality and Call Failure Rates can be easily and automatically measured. Additional metrics include S/N levels, delay, jitter, and clipping". Voice Quality utilizes three widely accepted algorithms to perform the voice comparisons, Perceptual Evaluation of Speech Quality per Rec. P.862.1/2, Perceptual Analysis / Measurement System per Rec. P.800, and Perceptual Speech Quality Measurement per Rec. P.861. PESQ provides an objective measurement of subjective listening tests on telephony systems".