Microsoft’s latest Office 365 features are expected to heat up the competition with Cisco and other telephony vendors in the SMB market.
Read more…: Microsoft heats up SMB market with new Office 365 features
Keysight Technologies Inc. introduced the enhanced U8903B audio analyzer with new Bluetooth® audio measurement capabilities. The Bluetooth option enables the U8903B to make high-performance Bluetooth audio testing for R&D, quality assurance and production tests in the consumer and professional audio and wireless communication industries.
Read more…: Keysight adds Bluetooth audio measurement capabilities to performance audio analyzer
Our client inquired Sevana for NIPO CATI dialer that could effectively work in predictive mode being able to play sound file to the interviewee.
Sevana CATI Dialer utilizes asynchronous capabilities of Python framework and flexibility of Asterisk architecture to work with majority of Asterisk based telephone systems (e.g. FreePBX) providing standard interfaces for reporting and statistics. The fact that single Sevana CATI Dialer server can process requests from several NIPO and is flexible in upscaling was very much appreciated by the client.
During project implementation our team also solved tasks for telephone database pre-processing allowing quick project launch and leading to full customer satisfaction.
AQuA is a proprietary technology of Estonian business entity Sevana Ou. It implements a proprietary perceptual model based on research of several recognized scientists that determined frequency bands specific for human perception of audio signals. AQuA main return value is percentage of audio quality similarity between reference and test sound signals. AQuA can work with audio from 8kHz, 16 bit, Mono up to 192kHz, 32 bit, Stereo and has lots of parameters to adjust system perceptual model for client specific test scenarios to achieve best performance and accuracy.
Latest AQuA version provides the following sound quality metrics:
AQuA waveform analysis technology has been recognized in voice quality assessment across various networks, both TDM and packet switched. AQuA algorithm does not depend on the language, can work with audio files of arbitrary (from 10 seconds to several hours) duration.
VoIPmonitor is an open source network packet sniffer with commercial frontend for SIP RTP and RTCP VoIP protocols running on Linux. VoIPmonitor is designed to analyze quality of VoIP call based on network parameters – delay variation and packet loss according to ITU-T G.107 E-model which predicts quality on MOS scale. Calls with all relevant statistics are saved to MySQL or ODBC database. Optionally each call can be saved to pcap file with either only SIP protocol or SIP/RTP/RTCP/T.38/udptl protocols. VoIPmonitor can also decode speech and play it over or save it to disk as WAV. Supported codecs are G.711 alaw/ulaw and commercial plug-ins support G.729a G.723 iLBC Speex GSM SILK iSAC OPUS.
AQuA wrapper allows substitute PESQ when using VoIPmonitor to extend possibilities for intrusive voice quality analysis with AQuA technology:
Integrating Sevana AQuA into VoIPMonitor is a sequence of the following actions:
Example:
INSERT INTO `filter_ip` (`id`, `ip`, `mask`, `direction`, `rtp`, `sip`, `register`, `graph`, `wav`, `skip`, `script`, `mos_lqo`, `hide_message`, `note`, `remove_at`) VALUES (1, 2887453184, 24, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 3, NULL, NULL, NULL);
Bird Technologies, a leading provider of RF components, subsystems, test equipment, and services, today introduced the 614 Series digital signal boosters that are designed to increase the signal strength of land-mobile/public safety communications systems operating at either 450 to 470 MHz or 470 to 488 MHz. The highly configurable system combines the benefits of programmable digital RF filters, the ability to view changes to filter characteristics while viewing their effects in real-time, browser-based configuration and management, and many other features.
Read more…: Bird Technologies introduces digital signal booster
Anritsu Co. announces support for LTE-A 3 Carrier Aggregation (3CA) Carrier Acceptance Test (CAT) requirements at two additional major North American carriers, building on the first announcement of 3CA support for a third carrier in September.
Read more…: Anritsu first test company to provide LTE-A 3CA Support to three North American carriers
