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E-Soft Brings VoIP to Intel's XScale

A Taiwan-based software vendor said it is doing its part to speed the deliver of voice over Internet Protocol using Intel XScale processors.

E-Soft has released a new reference design for the Intel XScale IXP-425 chipset, the company said Friday. The platform is part of its IAD (Integrated Access Device) software. The company said its reference design could help equipment developers create high-performance combined router, firewall/NAT , VoIP and wireless function devices. Currently E-Soft said it has contracted the reference design out to five unnamed vendors working on their own VoIP devices.

The design supports devices including those based on SIP or H.323 IP terminals as well as public switched telephone network (PSTN) analog phones. The IAD also maintains IP Ethernet connections, Wi-Fi for creation of a wireless hotspot, and RJ-11 sockets for connecting PSTN phones

The IAD design also supports both the VxWorks and embedded Linux platform architectures and allows for advanced DSP support such as echo cancellation, automatic gain control, voice activity detector, jitter elimination, and packet loss concealment.

E-Soft said it developed its IAD designs with the help of Radvision's SIP/H.323 IP Phone and IAD developer toolkit. E-Soft, which said it would be marketing the package to its customers, said the platform allows for crossover of the transport and call feature layers, as well as the gateway and phone applications for voice over IP. Prices were not disclosed.

"E-IAD is already finding huge success as a flexible development platform, thanks to the Radvision technology, for reducing the time it takes OEMs or ODMs to develop VoIP-enabled devices such as VoIP AP, VoIP gateways, and other IP-based communication devices," Michael Su, vice president of E-Soft, said in a statement.

Su said choosing Intel's XScale as the processor architecture was a no-brainer. The ARM-based RISC core clocks up to 533MHz with 64k of cache. But it is also important to embedded product developers because Intel knit together several components on the chip including a SDRAM controller, two high-speed serial ports, two 10/100Mbit Ethernet ports, a UTOPIA interface for ATM / xDSL, PCI bus, host USB, and even an encryption accelerator.

The chip can be used in a variety of applications, such as high-end residential gateways, small to medium enterprise (SME) routers, switches, security devices, mini-DSLAMs (Digital Subscriber Line Access Multiplexers), xDSL line cards, wireless access points, industrial control systems and networked printers.