VoIP suite runs on Toshiba embedded controller

HelloSoft and Toshiba America Electronic Components have developed a complete VoIP phone software suite fully optimised for the Toshiba T6TC1XB-001 embedded controller.

HelloSoft and Toshiba America Electronic Components (TAEC) have developed a complete voice over Internet Protocol (VoIP) phone software suite fully optimised for the Toshiba T6TC1XB-001 embedded controller.

The T6TC1XB-001 is built on a single ARM926EJ-S processor core.

The software reference design implementing the phone suite includes complex voice algorithms and protocols running on the embedded Linux operating system (OS).

The TAEC and HelloSoft solution implements all VoIP functions, including codecs, line echo cancellers, acoustic echo cancellers, telephony components and telephony signalling stack, on the Toshiba T6TC1XB-001-based reference design.

The reference design is built on a single ARM926EJ-S processor core running the embedded Linux OS.

"The TAEC and HelloSoft solution represents a step forward in assisting original equipment and original device manufacturers in significantly reducing the cost and complexity of developing VoIP phone systems", said Richard Tobias, Vice President of the ASIC and Foundry Business Unit, TAEC.

"The optimised solution is powerful enough to implement two channels of voice for VoIP phones, wireless IP phones, residential gateways, integrated access devices and other VoIP-enabled devices".

"The Toshiba T6TC1XB-001 embedded controller-based design together with HelloSoft's expertise in utilising RISC processors efficiently for complex DSP algorithms enabled us to develop this high-performance, ultra-low-cost VoIP solution", said Krishna Yarlagadda, CEO and President, HelloSoft.

"This low-cost VoIP solution from our two companies cannot be underestimated in regards to its effect on enabling the market".

The HelloVoice software suite on the Toshiba reference design is an enhanced solution including G.711, G.726, G.723.1 and G.729AB vocoders, G.168-2000 line echo canceller, voice activity detection (VAD), comfort noise generation (CNG), jitter buffer, packet loss concealment (PLC), DTMF tone detection and generation, call progressive tone (CPT), SIP/RTP/RTCP call signalling and control, and multichannel system-level framework.

The T6TC1XB-001 embedded controller is part of the Toshiba SoCMosaic custom chip programme that lowers development costs and enables tape-out in as little as six months using mix-and-match IP blocks and a standardised bus.

The T6TC1XB-001 embedded controller runs at 150MHz, and features two full-duplex Ethernet 10/100 media access controllers (MAC), an ARM926EJ-S core, dual 16Kbyte cache, 8Kbyte SRAM, memory management unit (MMU), real-time clock (RTC), counter, interrupt controller, universal asynchronous receiver transmitter (UART), watchdog timer, general purpose input/output (GPIO), 33MHz PCI, static and nonvolatile memory (Flash/SRAM/ROM) interface controller, SDRAM controller, direct memory access (DMA) and Joint Test Action Group (JTAG)/scan/BIST.

Voice components and protocols are available now from HelloSoft.

The Toshiba T6TC1XB-0001 embedded controller and its reference design are available now from TAEC at $13.50 each in 1000-piece quantities.

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