Showing posts with label Voice. Show all posts
Showing posts with label Voice. Show all posts

Friday, 13 January 2012

Top Global Launch the World's First HSUPA Router with Built-in QoS and ALG to Deliver Data and Voice (VoIP) Over 3G Cellular Networks (VoIPo3G)

CES, Las Vegas, NV (PRWEB) January 6, 2008

Top Global, the global leader in mobile wireless convergence systems, announced today that the MobileBridge product family supports latest cellular communication technology - HSUPA (High-Speed Uplink Packet Access (HSUPA) and VoIP over 3G (VoIPo3G). The MobileBridge is a patented gateway/router that links 3G and 4G wireless networks with WLAN and LAN, enabling enterprises to enjoy the flexibility and convenience of broadband wireless Internet in truly mobile and remote environments.


HSUPA enables high-speed uplink data communications such as voice over internet protocol (VoIP) and interactive multimedia with improved data speed and shorter latency. Although we first demonstrated VoIPo3G feasibility back in 2003, analysts and 3G carriers have only begun to explore the vast potential of this application recently. Disruptive Analysis forecasts 255 million active VoIPo3G users by the end of 2012. With increasing worldwide penetration of HSUPA and EVDO Rev.A, uplink bandwidth has improved significantly which makes VoIPo3G an attractive application for end users and carriers. Many of our enterprise customers are using the 3G MobileBridge (MB8000) with IP phones which route voice traffic from their remote offices over 3G cellular network work to their corporate IP-PBX. Partnering with our customers, we have developed technologies to overcome two major issues. The first one is quality of service. We have implemented our proprietary native QoS in our Enterprise product line: MB8000, MB9000 and MB6800M (more product info can be found: http://www.topglobalusa.com/) to support VoIPo3G. For example the MB8000 can intelligently route voice traffic with higher priority than other data transfers like file download, etc. Therefore, one can still carry on a clear conversation and download a large file at the same time. The second issue is NAT/Firewall traversal. We have implement VoIP friendly NAT in MB8000. On the other hand, our MB9000 and MB6800M support SIP and H.323 application layer gateway (ALG) to deliver VoIPo3G. The ALG enables secure transport of VoIP traffic through the firewall and NAT so packets don't bounce off the firewall.


As the market demand for uplink speed grows, there are clear advantages to support seamless migration from HSDPA to HSUPA in our MobileBridge product family. Using the MobileBridge with AC881 and AT&T HSUPA network, average uplink throughput of 500-800 kbps and downlink throughput of 600-1400 kbps can be achieved. With HSUPA and EVDO Rev.A technologies, our MobileBridge can better support innovative mobile applications and advanced features including:


%uF06E????Broadband Wireless Internet Access. Similar to EVDO Rev.A, the HSDPA technology delivers higher data rate than DSL, and cable. It offers additional freedom and flexibility for customers to get anywhere anytime internet access.


%uF06E????New Applications. High speed uplink makes HSUPA (and EVDO Rev.A) an ideal technology for applications such as VoIP, video surveillance, and interactive multimedia communication.


%uF06E????Mobility. Optimized handover schemes with short latencies ensure real-time applications such as VoIP performance without service dropout or degradation in moving environments.


Please contact Top Global at support @ topglobalusa.com to schedule a time to see and experience the HSUPA router and VoIPo3G solution during CES, Jan.7-10, 2008 in our Mobile Demo Vehicle in Las Vegas (also CES booth #72601 at Sands).????


About Top Global USA, Inc


Top Global is a leading wireless systems company and a global leader in third generation (3G) mobile wireless technologies. Top Global offers total wireless solutions for carriers, enterprises, and consumers. Our mobile wireless products and solutions enable enterprise customers to increase productivity, improve operational efficiency, and maintain a competitive edge. Our products are simple to use which improves overall user experience, and our continuous innovation in mobile data applications enhance the quality of life for mobile consumers. We believe the future of wireless communication has just started, and that the nascent wireless broadband Internet will become as pervasive as the Internet itself. Top Global sees it as a business opportunity to give everyone easy wireless high-speed Internet access anywhere at anytime. This wireless horizon has just been discovered, and we will broaden the World Wide Web (WWW) to a World Without Wires (WWW). Our corporate mission is "Broadening Wireless Horizons".


More information about Top Global is available from our Web site at http://www.topglobalusa.com/


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More Wireless Router Press Releases

GL Announces Echo, Delay, and Voice Quality Analysis of Voice Calls in VoIP, TDM, 2Wire, and Mobile Networks

Gaithersburg, Maryland, USA (Vocus/PRWEB) March 04, 2011

GL Communications Inc. announced today the release of its newest Echo Measurement Utility Software(EMU) that measures Echo Path Delay (EPD) and Echo Return Loss (ERL) of voice calls. Speaking to reporters, Mr. Robert Bichefsky, Senior Manager, said, Echo can be as simple as sidetone, or more complex such as line, and acoustic echo. The EMU when combined with GLs VQuad, Dual UTA, T1 E1 Analyzers, or Voiceband Analyzer, additional voice quality metrics such as round trip delay (RTD), voice quality, and noise can also be measured.


He added, A voice call may transit a variety of networks Mobile, VoIP, TDM, and others. A typical call can have many of the following characteristics that can affect quality: narrowband (8 kbps) or wideband call (> 64 kbps), end-to-end digital but with D/D conversions (codec conversions), many D/A and A/D conversions, additive noise and/or background noise, speech level variations, variable delay, echo in the form of sidetone, line echo, or acoustic echo, signaling and voiceband conversions that affect DTMF, FAX, and MODEM transmissions, packet delay, loss, sequencing, and duplications.


Mr. Bichefsky explained, To provide a comprehensive assessment of voice quality irrespective of network type, GL has combined various tools together into one platform consisting of VQuad, Dual UTA, USB T1 E1, and WEBViewer. This platform provides the ability to make VoIP, TDM, and Mobile calls from any fixed or mobile location. All interface flexibility is provided (2Wire, 4Wire, VoIP, TDM, and Mobile) within the Dual UTA and USB T1 E1 Analyzer. In addition, VQuad provides algorithms for signaling, voice transmission, and voice quality assessment. WEBViewer provides the central point where voice metrics are stored and displayed through a WEB interface.


Recently, GL introduced Echo Measurement Utility (EMU) software within this architecture to assess sidetone, line, and acoustic echo and corresponding delays. EMU is an offline adjunct analysis application (under control of VQuad) that compares the source and received files to determine echoes and delay of echoes. The EMU provides delay and ERL measurements for all detected echoes, along with an ERL vs Delay plot where each echo is depicted within the plot. One can zoom-in on a particular echo to gauge overall echo impairments. In addition, the application includes signal graphs for source signal, received signal, error signal, and adaptive filter coefficients.


Main Features:


Measures EPD in msec and ERL in dB

Compares source and received files to determine maximum of 4 echoes

Ability to automate the entire test process using VQuad scripting including sending the results to the central database for access via GLs WebViewer

Detailed offline analysis

Supports Line and Acoustic Echo Modes

Graphically displays source signal, received signal, error signal, and adaptive filter coefficients

Allows zoom-in on each graph, and exporting snapshot of these graphs to a file for later analysis

Calculates adaptive filter coefficients and echo characteristics for the error signal

Speaker option to play the audio files (intrusive and non-intrusive)

Option to zoom-in on any particular echo to investigate further


About GL Communications Inc.,


Founded in 1986, GL Communications Inc. is a leading supplier of test, monitoring, and analysis equipment for TDM, Wireless, IP and VoIP networks. Unlike conventional test equipment, GL's test platforms provide visualization, capture, storage, and convenient features like portability, remotability, and scripting.


GLs TDM Analysis & Emulation line of products includes T1, E1, T3, E3, OC-3, OC-12, STM-1, STM-4, analog four-wire, and analog two-wire interface cards, external portable pods, and complete system solutions. Capabilities include voiceband traffic analysis and emulation across all traffic types (voice, digits, tones, fax, modem), all protocols (ISDN, SS7, GR-303, Frame Relay, HDLC, V5.X, ATM, GSM, GPRS, LTE, etc.), and with capacities up to thousands of channels. Our newest products provide astonishing capacity and capture capability up to and including gigabit speeds.


GLs VoIP and IP products generate / analyze thousands of calls and traffic simultaneously with traffic types such as frames, packets, voice files, digits, video, tones, noise, and fax. Almost all codecs are supported including G.711, G.729, AMR, EVRC-A,B,C, GSM, iSAC, and many more. Additional features include visual analysis, real-time listening, and recording. The product line also includes Ethernet / IP Testing capability that simulates and checks frame transport and throughput parameters of Ethernet and IP networks, including delay, errors and other impairments.


GL's Voice Quality Testing (VQT) product line complements all of GL's products. Using ITU-standard algorithms (PAMS, PSQM, and PESQ), GL's VQT provides a widely accepted solution for assessing voice quality in the telecom industry. Voice Quality Testing across multiple networks (T1, E1, T3, E3, OC-3, OC-12, VoIP, Wireless, and Landline) are all available.


GLs Wireless Products perform protocol analysis and voice quality assessment on GSM, CDMA, UMTS, and LTE networks. Connections can be made to any wireless phone with automated call control, GPS mapping and real-time signal measurements.


GLs Echo Canceller testing solutions provide the broadest range of simulation and analysis, including line and acoustic echo. GLs compliance testing per G.168. G.167, and P.340 across TDM, IP, VoIP and Wireless networks is widely accepted in the industry.


GLs wireless VQT solutions help assessing impairments to voice quality such as poor mobile phone quality, voice compression and decompression algorithms, delay, loss and gain in speech levels, noise, acoustic and landline echo, and other distortions are easily assessed and accurately measured.


GLs Handheld data testers can test a wide variety of communications facilities and equipment including T1, fractional T1, E1, fractional E1, T3 and E3 modems, multiplexers, CSU, DSUs, T1 CSUs, DTUs, NTUs and TIUs and more. The testers provide convenience, economy, and portability for almost any interface, including RS232, RS-422, RS-530, X.21, T1, E1, T3, E3, and many others.


GLs Network Surveillance and Monitoring products include Probes for TDM, IP, VoIP, ATM, and Wireless networks. An open standards based approach provides a scalable, feature rich, real-time access to network characteristics. Centralized or distributed access, efficient transport and database loading allow compatibility with 3rd party and standards based monitoring systems.


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