CableLabs Hosts HD Voice Interop, Inks DECT Pact

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CableLabs hosted an interoperability testing event around wideband HD Voice in early December with 11 participating vendors, and also announced it has signed a collaboration agreement with the Digital Enhanced Cordless Telecommunications Forum, which maintains standards for cordless phones.

CableLabs said it has adopted the DECT Cordless Advanced Technology - Internet and quality (CAT-iq) specifications as part of its PacketCable HD Voice initiative.

HD Voice delivers higher-quality voice transmissions by more than doubling the frequency of range of traditional narrowband voice calls to "wideband audio" ranges (50 Hertz to 7 Kilohertz).

"This collaboration agreement enables cable operators, CableLabs and the DECT Forum to work together to ensure that all HD Voice capable DECT handsets certified worldwide will operate with cable gateways," CableLabs vice president of IP technologies and services Jean-François Mulé said in a statement.

During the Dec. 6-10 interop event at CableLabs' Louisville, Colo., headquarters, the participants completed several HD Voice calls using different components from various suppliers. The interop specifically addressed DECT CAT-iq 2.0 technology, which is designed to enhance quality of digital voice increasing engagement for both consumer and business voice.

Participating suppliers were Binatone, BroadSoft, CCT, DSP Group, Lantiq, Panasonic, RTX, Samsung, SMC Networks, Technicolor and VTech. The vendors demonstrated product interoperability among DECT chipsets, base stations, handsets and SIP-based applications of different suppliers including PacketCable multimedia terminal adapters for European and American frequency plans.

"This interop was great to observe because it was one of the best attended interops held for DECT HD Voice, and it showed tremendous gains being made with this technology," Jeff Lewis, Comcast senior director of technology product development for broadband devices, said in a statement. "This level of interoperability is one of the keys to unlock HD Voice delivery. It opens the way for retail availability of new and innovative handsets for HD voice and SMS texting that work on cable right out of the box."

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