SoC sets course for VoIP market
01 August 2006
Consumers are continuing to drive technology advances and dictate the level of take-up in residential broadband equipment. The demand for advanced services to the home is boosting the customer premise equipment market, with a 20 per cent worldwide growth last year according to a report from In-Stat.
The appeal of VoIP in the home is primarily the cost-savings that it can bring to personal budgets, although the appeal is broadened with the additional features that domestic broadband gateways can bring.
VoIP (voice over internet protocol) and data routing features are integrated in the TNETV1061 VoIP SoC from Texas Instruments (www.ti.com). It includes the processor, communication and peripheral functions necessary to build an advanced IP phone.
The DSP-based SoC can be used in residential applications, which value voice quality, scalability and low cost and where service providers require low-cost and reliability and a suite of advanced VoIP call features.
It provides a suite of voice and network, protocols, call features and XML-based configuration and remote management. Consumers can use advanced security features, such as Secure RTP and SIP TLS and still keep the low-density, for domestic use, voice channel.
Memory interfaces are a DDR and NAND flash memory for local voicemail storage. Combined with a MIPS RISC processor, there is enough processing power to deliver two secure, simultaneous voice channels for
conferencing.
The company’s PIQUA embedded IP quality management monitors IP services in real-time and to allow service providers to assess voice quality parameters and dynamically adapt to changes in the network conditions so that user quality does not suffer.
Canadian communciations hardware and software provider Mitel (www.mitel.com) has used the TNETV1050 in its 5300 series IP phone. It delivers real-time access to applications and services, web browsing, contact list, call history logs and customised user settings. The 5330 phones provide voice
communications over an IP network. They have a 160 x 320 graphics display and support Wideband Audio Handsets to improve the acoustic quality which can detract from some of the IP phones available today.
The SoC integrates the company’s Telogy Software with the company’s TMS320C55x DSP core for real-time signal processing. The dual processor architecture is suitable for simultaneous real-time voice processing and data traffic under heavy load conditions. It can be used in the analogue terminal adapter, VoIP gateway/router and VoIP-enabled 802.11b/g access point/router or broadband cordless phone.
The so-called fixed-mobile convergence, where the mobility of service is combined with the low operating costs of VoIP technology uses higher-rate CODECs, inlcuding EVRC and GSM. These are also supported by the VoIP processors and Telogy softare. The SoC also seamlessly interfaces to the company’s TNETW1350A 802.11b/g chip and integrates the access point software to support WLANenable VoIP products.
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