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Harmonised relay services

Harmonised relay services. The work of STF 325 A project funded by ETSI and the European Union W J Mellors C.Eng. The Team. Wally Mellors - STF leader Gunnar Hellstr ö m Juan Calero González. This presentation. Will describe the problem Set out the aims of the work

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Harmonised relay services

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  1. Harmonised relay services The work of STF 325 A project funded by ETSI and the European Union W J Mellors C.Eng

  2. The Team • Wally Mellors - STF leader • Gunnar Hellström • Juan Calero González STF 325 "Relay Services"

  3. This presentation • Will describe the problem • Set out the aims of the work • Describe the background • Look at the future • Make a call for help STF 325 "Relay Services"

  4. The Problem • Many users are unable to use ordinary telephones because of their inability to hear and/or speak • They can use some form of textphone or total communication to “talk” or sign to one another • They cannot communicate with users of ordinary telephones • Some form of conversion service is therefore required • These services are known as Relay Services • Harmonisation of these services will improve European wide communication for all STF 325 "Relay Services"

  5. Present Aims • In 2000, TC HF produced TR 101 806 giving guidelines for relay services • Report was based on PSTN for text and ISDN for video • The aim of the present work is to convert this report to an ETSI standard • A standard will not be accepted and used unless it is realistic and achievable • This will need co-operation from all current relay service providers STF 325 "Relay Services"

  6. Present situation • Much has changed since the year 2000 • New IP based systems are available • Updating will be necessary • But mandatory requirements must be currently achievable • IP based systems need proving • All will be explored with current service providers STF 325 "Relay Services"

  7. What is needed • Conversation in real time by text and voice • Duplex working (two way simultaneous) • Simple call set up and clear down • Progress information in text form • Provision of relay services • Access to emergency services • Provision for signing and lipreading • Just like an ordinary telephone call STF 325 "Relay Services"

  8. The DUST concept D - Duplex – simultaneous send and receive U – Universal - Worldwide on all networks S – Speech in both directions T – Text with conversational flow STF 325 "Relay Services"

  9. Services • Basic call • Supplementary services. Hold, transfer, etc • Emergency service 112 • Relay service with text support • Text <> voice • Hard to understand speech <> clear speech • Sign language <> voice • Interoperability between DUST Host environments • Interoperability with legacy systems STF 325 "Relay Services"

  10. Text goes mobile • Push from USA to include real time text in mobile services • 3GPP established Global Text Telephony standards for text addition to all call environments with international applicability • In the circuit switched voice calls • In the circuit switched multimedia calls • In IP multimedia calls • Mainly re-using work from ITU and IETF • Now adopted as ETSI specifications STF 325 "Relay Services"

  11. The Future • Text Conversation available to ALL • Across all networks • Using open and available standards • All terminals interwork • Full legacy support • Texting anywhere anytime • With voice available • And with Video for signing and lipreading STF 325 "Relay Services"

  12. This is the future STF 325 "Relay Services"

  13. A call for help • Can you tell us of current relay service providers? • Do you wish to be a stakeholder ? • Please contact me at: • wjmellors@btconnect.com STF 325 "Relay Services"

  14. Thank you for listening

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