Voice over Internet Protocol (VoIP) has been available to the public since the early 1980s and interoperable with PSTN networks since the late 1990s. Introduction of VoIP standards and protocols such as Megaco, MGCP, H.323 and SIP has enabled service providers and consumer electronics (CE) manufacturers to supply new VoIP subscriber services. The DECT Forum, GSM Forum, CableLabs and other standardization bodies have endorsed SIP as VoIP's core protocol, and worked closely with the IETF to define its standard.
CAT-iq is another important standard related to VoIP's advancement. Defined and promoted by the DECT Forum, CAT-iq integrates broadband Internet and standard telephony to extend DECT phone usage with VoIP and other Internet services. As a worldwide market leader in cordless technology, DSP Group® is an active member of the DECT Forum, the Forum's CAT-iq Marketing Working Group, and CableLabs.
DSP Group is also recognized for its worldwide market leadership in VoIP, offering the advantage of seamless scalability to DECT. The company is a major player in the VoIP market, with its solutions deployed by several tier-one customers including Cisco, Grandstream, PSN, Gigaset, Skype, Philips and Hauwei.
DSP Group provides best-in-class audio quality for low-end VoIP applications and up, while the company's cost-effective solution for low- to mid-range VoIP applications can be seamlessly extended to high-end applications.
DSP Group's software development kits (SDKs) help many of the world's leading CE manufacturers such as Panasonic, Siemens, Uniden, Philips and Motorola rapidly develop new VoIP products. These include home PBXs with DECT access points, home gateways (HGWs) with VoIP and cordless capabilities, fully featured VoIP phones, and cordless VoIP analog adapters.