Wednesday, September 28, 2016

Prysm adds guest mode to visual workplace meeting service


In UC news, Prysm adds guest mode to allow outside users into its visual workplace software, while video analytics is seeing growing interest in several verticals.

Read more…: Prysm adds guest mode to visual workplace meeting service



Prysm adds guest mode to visual workplace meeting service

Friday, September 23, 2016

Thursday, September 15, 2016

Monday, September 12, 2016

Monitoring call quality of a particular SIP number in RTP stream

In some cases when receiving customer QoS or QoE complains one has to monitor call quality of a particular client to figure out root cause of the problem. In most of the cases one may not record conversations, but does need information on what is happening with voice quality on the call. PVQA server allows discovering impairments in a call with specific SIP number in RTP stream providing several metrics that make discovery of the problem root cause easier:


screen-shot-2016-09-09-at-8-21-34-am


Sevana MOS is quality score predicted by pure audio waveform analysis


Network MOS is calculated based on network statistic


PVQA waveform analysis informs on such metrics as SNR, Dead Air, Clipping, Crackling, Echo for each 10 seconds of the call providing also final report on the impairments that lead to voice quality degradation:


screen-shot-2016-09-09-at-8-22-02-am


As an example one may receive call audio from a partner supplier already with impairments caused by packet loss in the partner network, but won’t be able to determine the issue having perfect network conditions in its own network. In such cases PVQA server will report low Sevana MOS and high Network MOS and metrics will show Dead Air and Clicking impairments in the call audio. Another example is amplitude clipping, which typically happens due to amplification misconfiguration on the voice path. Just let us know you are interested and we tell you more.



Monitoring call quality of a particular SIP number in RTP stream

Wednesday, August 31, 2016

Microsoft shakes up UCaaS Magic Quadrant with cloud-based Skype


In UC news, the UCaaS market has evolved past the early adopter phase as services mature, while video PaaS is expected to see growth as users look to embed real-time video in apps.

Read more…: Microsoft shakes up UCaaS Magic Quadrant with cloud-based Skype



Microsoft shakes up UCaaS Magic Quadrant with cloud-based Skype