TIA TIA-811-A

Abstract

This Standard specifies the minimum requirements for media and protocol-specific call control interoperability, acoustic performance, telephony feature support, safety, electromagnetic compatibility, and environmental performance of VoIP Feature Telephones operating in a business environment. <br>Although this Standard specifically addresses physical IP phones, it does not preclude the implementation of applicable functionality in a soft client. However, such implementations are not specifically addressed in this Standard. <br>This Standard applies specifically to VoIP Feature Telephones that are connected to an IEEE Std. 802.3 network utilizing Internet Protocol (IP). <br>This Standard harmonizes, wherever possible, with Megaco protocol as applicable to control of IP telephones. <br>This Standard supports the use of ITU-T Recommendation H.323 procedures for call establishment and call control. <br>This Standard supports the use of the Session Initiation Protocol (SIP) for call establishment and call control. <br>This Standard does not place requirements on system level components such as call agents, proxy servers, gateways or gatekeepers. <br>This Standard specifies security requirements pertaining to the provisioning of a VoIP Feature Telephone, but leaves the provisioning implementation itself up to the discretion of the manufacturer.