TR-41 User Premises Telecommunications Requirements
Committee TR-41 addresses voluntary standards for telecommunications terminal equipment and systems, specifically those used for voice service, integrated voice and data service and Internet protocol (IP) applications. The work involves developing performance and interface criteria for equipment, systems and private networks, as well as the information necessary to ensure their proper interworking with each other, with public networks, with IP telephony infrastructures and with carrier-provided private-line services. It also includes providing input on product safety issues, identifying environmental considerations for user premises equipment and addressing the administrative aspects of product approval processes. In addition, TR-41 develops criteria for preventing harm to the telephone network, which become mandatory when adopted by the Administrative Council for Terminal Attachments (ACTA).
TR-41 Leadership
| Chair | Whitesell Consulting | Stephen Whitesell |
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TR-41 Top Standard Documents
- TIA-470 Telephone Terminal Equipment Performance Standards: a comprehensive set of acoustic performance requirements for analog telephones, which address acoustic transmission, electrical-interface, and telephony features.
- TSB-32-A Overall Transmission Plan Aspects for Telephony in a Private Network: This TSB (created in partnership with ETSI) provide the planners of multi-national and trans-continental private networks with the transmission planning principles and examples which will enable them to design a loss and level plan for the network and optimized the desired level of voice quality between users and between networks.
- TSB-129-B Telecommunications Telephone Terminal Equipment U.S Regulatory Approval Guide: provides guidance to responsible parties (based on FCC Rule 47 C.F.R. Part 68) who wish to achieve approval of Telephone Terminal Equipment (TTE) for connection to the U.S. public switched telephone network by the Supplier's Declaration of Conformity or Telecommunication Certification Body methods.
- IP Telephony Equipment (VoIP) Standards (free): includes TIA-811-A Performance and Interoperability Requirements for Voice-over-IP Telephones TIA-912-B Voice Gateway Transmission Requirements, TIA-1057 Link Layer discovery Protocol For Media Endpoint Devices, TSB-116-A Voice Quality Recommendations for IP Telephony, TSB-146-A IP Telephony Support for Emergency Calling Service, TSB-160 Synchronization in IP Networks, and TIA-1003 Requirements for a Wireless LAN Based IP Telephony Endpoint.
- Terminal Equipment Standards for Digital Telephones (free): includes TIA-920.000-A Overview of Acoustic Requirements for Wideband Digital Wireline Telephones TIA-920.110-A ATransmission Requirements for Wideband Digital Wireline Telephones with Handset and TIA-920.130-A Transmission Requirements for Wideband Digital Wireline Telephones with Headset.
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Overview of TR-41 Acoustic Accessibility Standards, James R. Bress.
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