New ATIS Standard Specifies Mobile Device Behavior for Real-Time Texting

WASHINGTON — March 13, 2017 —  ATIS today announced release of a new specification that standardizes mobile device behavior for handling Real Time Text (RTT) in the IP environment, a solution favored by the disability community, including deaf and hard of hearing individuals, as a viable replacement for teletypewriter or text telephony (TTY). Not only does the new ATIS standard, Real-Time Text Mobile Device Behavior (ATIS-0700029), allow for characters to be transmitted and displayed as they are typed, it also facilitates the use of RTT between mobile devices across multiple operators.  Through ATIS, operators have seized a major opportunity in the all-IP transition to make use of the wireless device’s internal keyboard, thus freeing users from carrying a burdensome standalone keyboard.

“The new RTT standard applies our innovative approach toward advancing the all-IP transformation to helping deaf and hard of hearing individuals communicate more easily in today’s wireless world,” said ATIS President and CEO Susan Miller.  “It also gives operators the opportunity to more easily transition from the current TTY mandate, which evolved from a regulatory requirement for a circuit-switched environment, by instead providing the new RTT capability.”

The new RTT standard, developed with input from consumer advocates, specifies the minimum behavior of the mobile device needed for performing RTT user-to-user communication within and between VoLTE Commercial Mobile Service Providers.  Comprehensive in nature, it addresses user origination of an RTT call; user receipt of an RTT call; device configuration for the RTT capability; user device interaction among voice, video, and RTT media types; and other end-to-end considerations specific to mobile devices.

Access Real-Time Text Mobile Device Behavior (ATIS-0700029) in the ATIS Document Center, your leading resource for technical operations standards for the global ICT industry that are produced by ATIS Committees and Forums.


About ATIS

As a leading technology and solutions development organization, the Alliance for Telecommunications Industry Solutions (ATIS) brings together the top global ICT companies to advance the industry’s most critical business priorities. ATIS’ 150 member companies are currently working to address 5G, the all-IP transition, network functions virtualization, big data analytics, cloud services, the ICT implications of Smart Cities, emergency services, IoT, cyber security, network evolution, quality of service, billing support, operations, and much more. These priorities follow a fast-track development lifecycle – from design and innovation through standards, specifications, requirements, business use cases, software toolkits, open source solutions, and interoperability testing.

ATIS is accredited by the American National Standards Institute (ANSI). ATIS is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a founding Partner of the oneM2M global initiative, a member of the International Telecommunication Union (ITU), as well as a member of the Inter-American Telecommunication Commission (CITEL). For more information, visit

About SIP Forum

The SIP Forum is an IP communications industry association that engages in numerous activities that promote and advance SIP-based technology, such as the development of industry recommendations, the SIPit, SIPconnect-IT and RTCWeb-it interoperability testing events, special workshops, educational seminars, and general promotion of SIP in the industry. The SIP Forum is also the producer of the annual SIPNOC conferences (for SIP Network Operators Conference), focused on the technical requirements of the service provider community. One of its notable technical activities is the development of the SIPconnect Technical Recommendation – a standards-based SIP trunking recommendation that provides detailed guidelines for direct IP peering and interoperability between IP PBXs and SIP-based service provider networks. Other important Forum initiatives include work in Fax-over-IP interoperability, User Agent Configuration, Video Relay Service interoperability, security, NNI, and SIP and IPv6. For more information, please visit:

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