Do SpectratLink wireless telephones support standard VoIP protocols such as H.323 and SIP?
H.323 is an International Telecommunications Union (ITU) standard developed for video/audio conferencing that has been adopted by several VoIP vendors for call setup and signaling. SpectraLink wireless telephones can use H.323 for basic call capabilities. For a more feature-rich implementation, the SpectraLink wireless telephones can use proprietary IP protocols or operate in conjunction with a SpectraLink Telephony Gateway to access features from a traditional PABX. In March 2005, SpectraLink announced integration with Inter-Tel’s Axxess platform using the SIP protocol. As additional IP-PABX vendors offer line-side SIP interfaces, SpectraLink will continue to develop and test SIP interfaces to meet those needs.