IP Telephony News Wrap-up for Sep, 27 2000

Lucent Introduces eCommerce and Softswitch Systems
Lucent has announced the introduction of Contact Assist, it VoIP enabled web based eCommerce technology, and a new version of its ExchangePlus IP and international gateway solution.

Contact Assist implements a decision engine type of technology that can automatically determine when a web site visitor is in need of help (for instance, if the visitor is going back and forth between web pages quickly looking for a product), and will automatically provide a pop up window on the user’s PC that will enable the user to initiate a text chat or VoIP session with a CSR to get help. The solution will also enable the CSR to co browse the site with the visitor, provide any additional information needed, and aid in closing the deal.

The ExchangePlus platform has been enhance to support an array of IP signaling technologies including the IMTC’s iNOW! interoperability technology. It is a carrier grade VoIP softswitch that provides connectivity between TDM an IP networks. It also features an open, programmable architecture that supports an array of SS7 protocols.

The Contact Assist application is scheduled to be available this winter, with the ExchangePlus system currently available.

In related news, ITXC has deployed Lucent’s ExchangePlus switches at all of its SuperPoPs, and at several of its remote customer locations. The provider’s global Internet telephony network has 273 POPs in 155 cities and 63 countries. The network enables other providers to route traffic to any telephone in the world via the infrastructure, ITXC’s affiliate provider’s networks, the public Internet or the PSTN. The company implements its own patent pending BestValue Routing technology to control the quality of calls.



Telocity to Deploy ipVerse’s Softswitch Technology
Telocity has announced that it is planning to deploy ipVerse’s IP telephony softswitch based technology, ControlSwitch, to integrate broadband voice services into its ISP offerings.

The multi-protocol ControlSwitch call control system provides interoperability via SS7, MGCP, H.323, IPDC, SIP and ISDN-PRI signaling. It can support voice/data traffic exchange within or between provider’s networks. It can also support more than one million busy hour call attempts, and it employs web based tools and an XML language to enable services to be developed without interrupting existing services. In addition, the vendor recently implanted plans to integrate MIND CTI’s customer care and billing solution, MIND-iPhonEX, into the ControlSwitch platform to develop a softswitch VoIP solution with integrated billing and customer care capabilities.

Tolocity currently offers high speed DSL based access services in 115 U.S. metropolitan markets. It is in the process of developing a variety of additional services throughout other U.S. markets that can be accessed via DSL and other high speed technologies such as wireless and cable.

In other news, ipVerse said that it has secured $21.8 million in a third round of funding with Kleiner Perkins Caufield and Byers, Norwest Venture Partners, Battery Ventures, Nissho Iwai and Williams Communications. The vendor intends to use the financing to expand its operations and marketing activities, and to focus addition resources on further product development




Polycom to Integrate Net2Phone’s VoIP Technologies
Polycom has announced that it is planning to bundle Net2Phone’s VoIP technologies with its line of DSL IADs, NetEngine. In addition, the firms will co market the VoDSL solution, which will enable users to access Net2Phone’s global VoIP networks to place calls.

The integrated product is expected to be available sometime this winter.

In other news, Polycom said that it is teaming with InternetConnect to develop video communications services. According to the terms of the deal, InternetConnect will integrate Polycom’s two way desktop video communications products, ViaVideo and ViewStation, and DSL IADs, NetEngine, into its VPNplus service, which offers DSL connectivity throughout the U.S. based on SDSL and ATM backbone technologies.

The solution/service is expected to be launched sometime this winter.




Voyant and VSYS Team for Voice Conferencing Solution
Voyant Technologies announces that it is teaming with VSYS to develop carrier grade voice conferencing solutions. According to the terms of the agreement, the firms intend to port Voyant’s ReadiVoice conferencing application to VSYS’ softswitch solution via SIP technologies to develop a solution that will support automated conferencing services over PSTN/VoIP networks.


Voyant Technologies

Tdsoft and Lucent Team to Offer V5.2 Compliant VoDSL Solutions
Tdsoft announced it has signed an agreement with Lucent, in which the firms intend to develop and offer VoDSL solutions in select international markets. According to the terms of the deal, the companies intend to develop interoperability between Tdsoft’s VoNGATE voice access gateway, and Lucent’s Stinger DSL access concentrator, and/or AnyMedia access systems and CellPipe IAD technologies. In addition, the vendor’s plan to design the solutions to utilize the V5.2 PSTN specification, which specifies an open interface for access network systems, and was approved by the ETSI and ITU for PSTN, ISDN and leased lines.



iNeTalk.com Introduces VoIP eCommerce Technology
iNeTalk.com Limited has announced the introduction of its web based VoIP enabled eCommerce technology, iNeTalk. The product enables web site visitors to click a call icon on a web site to initiate communications with a company’s CSR. Visitors will need to be using at least a Pentium 133, with 32 MB RAM, running Windows 95, 98 or NT, Netscape or IE version 4 or higher, a 28.8 Internet connection, a sound card, microphone and speakers.

The technology is currently available for download.


Nettel Expands Operations Into Vietnam
Nettel Global Communication Corporation has announced that it has expanding its VoIP operations to include a POP in the Ho Chi Minh City market. The firm intends to use the Vietnam facility to market and support its VoIP products and services, which it offers to enterprise, residential and wholesale markets. The company is in the process of developing a global network, currently has seven VoIP POPs in select markets throughout Australia, Thailand, Hong Kong, Malaysia and Singapore, with plans to deploy an additional 14 POPs in various countries by early next year.

Nettel Vietnam

Nettel Global Communication Corporation

Equant to Provide Statoil With IP Infrastructure and Service
Statoil, a Norwegian oil company, has announced that it is planning to use Equant’s global IP network and services, branded iVAD, for corporate communications. According to the terms of the US$2 million three year contract, Equant will provide the firm with an IP solution that will connect all of its operations throughout the world, which includes facilities in Lagos (Nigeria), Stavanger (Norway), Singapore, Stamford (Connecticut) and Caracas (Venezuela). The company will use the solution for a variety of applications including enterprise resource planning, IP telephony, email and file transfer. The iVAD service, which supports integrated voice and data over IP, is currently available in over 50 countries.


Silicon Spice Introduces 240 Port Capacity Chip Solution
Silicon Spice has reported the introduction of Calisto, its single-chip communications processor for carrier-class voice gateways, soft switches and remote access concentrators/remote access servers. The technology provides over 3.3 GMACs of signal processing power and 1.4Mbytes of memory to support 240 channels of G.711 traffic or 60 ports of universal communications per chip. In addition, it can handle all compute-intensive tasks including echo cancellation, voice/fax and data modem signal processing, packetization, cellification, delay equalization and telephony protocols within a packet telephony based application.

The technology is currently available for sampling, with commercial availability scheduled for later this year.

Silicon Spice

NEC and Cisco Team to Develop IP Based Voice, Video and Data Solutions
Cisco said that it is teaming with NEC Corporation to develop and market IP based voice, video and data infrastructure equipment. The firms intend to develop interoperability between NEC’s voice networking products including PBXs, applications and devices and Cisco’s line of AVVID (Architecture for Voice, Video and Integrated Data) technologies including the CallManager solution.



Tolly Research Results
Tests yield impressive voice quality: Lucent VoIP gateways deliver ‘excellent’ voice quality using G.711 vocoder

By Charles Bruno, Executive Editor, Tolly Research

In an independent assessment of voice quality delivered over IP networks, Tolly Research has found that a pair of Lucent Technologies’ voice-over-IP gateways deliver excellent quality audio when handling uncompressed voice traffic.

Engineers tested Lucent Technologies Inc.’s MAX 6000 and MAX TNT VoIP gateways, both of which employ a G.711 vocoder for encoding voice files. G.711 is an International Telecommunications Union Telecommunications Standardization Sector (ITU-T) Recommendation (1988) that utilizes Pulse Code Modulation (PCM) to encode/decode a voice signal using eight bits per sample at a rate of 8 kHz, yielding a data rate of 64 kbps. G.711 does not support compression.

Voice quality was quantified objectively using the Perceptual Speech Quality Measure (PSQM), which provides, according to the ITU-T, the most accurate estimate of the subjective quality of coded speech (ITU-T Recommendation P.861). PSQM is measured between 0 and 6.5. The best possible PSQM score is 0, which means that the output, or speech file, is identical to the input or source file.

Voice-quality measurements were conducted for two different signaling methods, Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) and T1 robbed-bit, to determine the impact on perceived voice quality. ISDN PRI uses a single out-of-band common channel for signaling separate information channels. In contrast, T1 robbed-bit signaling uses selective in-band bits to provide signaling, thereby reducing the 64-kbps bandwidth available for voice to 56 kbps.

The PSQM scores for all G.711 tests were less than 0.5, which indicates a relatively small difference in perceived quality for uncompressed speech before encoding and after decoding. Common Channel Signaling (e.g., ISDN PRI) achieved a better PSQM rating than T1 robbed-bit signaling. However, this is not too surprising since robbed-bit signaling reduces the information/voice bandwidth available to the user from 64 kbps to 56 kbps. However, the differences are audibly indiscernible.

For uncompressed voice, we recommend robbed-bit signaling since it provides good voice quality and the maximum number of simultaneous voice calls, says Scott Hamilton, chief operating officer of Tolly Research, which publishes the ITclarity reports. But we also expect that recommendation may change once we begin testing compressed voice over these gateways.

For more information on this and other IP Telephony issues, visit Tolly’s web site.

Tolly Resarch

Leave a Reply

Your email address will not be published. Required fields are marked *