Brent Lorenz, VoIP product manager at TI, said that this price must even include an option for power over Ethernet, since many small and midsize business (SMB) offices are including a PoE option for self-powering low-end phones. Recent studies from In-Stat and Infonetics Research suggest that more than 70 percent of the IP desk phone market in 2011 will be aimed at SMB applications, he said.

TI worked with its software partner Adaptive Digital Technolologies Inc. to define a minimal feature set for DSP software. A single channel of G.711 or G.729AB codec support is offered, and the IP feature set includes Session Initiation Protocol client and basic call-control functions. On the hardware side, the phones will support a single Ethernet port, optional LCDs and speakers and a choice of either PoE or a local power supply — and little else.

"Obviously, this can be a foot in the door in both the hardware and software sense, and the OEM will design with the attitude that many end customers will want to buy up as they become comfortable with VoIP," Lorenz said.

The 300-MHz DSP core does not use a MIPS control-plane core, as future members of the family are expected to do. The DSP core is surrounded by three multichannel buffered serial ports, eight general-purpose I/Os, four timers and a UART. On-chip memory includes 16 kbytes of instruction cache, 64 kbytes of RAM and a glueless interface to external SRAM or SDRAM.

TI is lowering the licensing costs by providing royalty-free BIOS and operating system software for the DSP, and by eliminating license kit fees for the basic package. OEMs that want the software customized beyond the basic package can receive help through ADT.

By: DocMemory
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