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- 188.93 9.14 Speech-to-text
- 188.949.15 Text telephony
- 188.94.49.15.2 Receiving text
- 188.94.59.15.3 Setting preference for real-time text
- 188.959.15.4 Implementation
188.919.13.1 Implementation alternatives188.92It could be implemented by both AT command and OBEX, which could benefit a wider range of external devices. AT commands is ASCII oriented, whereas OBEX could send the picture in various formats (e.g. jpeg, bmp) which would be more efficient than sending it using ASCII. Also, the pictures could be sent via Bluetooth, for example via the Basic Imaging Profile.188.939.14 Speech-to-textThe ability of a mobile phone to convert speech-to-text would enable persons who are visually impaired or blind to easily enter text. Recommendation 9.14: The communication device shall provide an interface with the necessary AT command to allow an external device to enable speech-to-text on their communication device. Table E.12: +CSTT parameter command syntax
Description The +CSTT command enables speech-to-text. Defined values 1 Speech-to-text on
188.94.1Recommendation 9.15: The communication device shall provide an interface with the necessary AT command to allow an external device to communicate using real time character by character text. [3, 31]188.94.2188.94.39.15.1 Sending textTable E.13: +CSTXT parameter command syntax
Description In text mode, characters entered during the recommended time span of 300 ms are sent in UTF-8 encoded Recommendation ITU-T T.140 format [17]. . Both the previously mentioned solutions send digital text according to ITU-T T140. If text is available in a call it is indicated through the unsolicited result code +CSTXT= Defined values 1 real-time text according to IMS. 2 text telephony over the voice channel and digitally.
Description In text mode, characters are received in Recommendation ITU-T T.140 format [17]. 188.94.59.15.3 Setting preference for real-time textTable E.15: +CRTXT parameter command syntax
Description Indication to the network if the real-time text medium shall be set up or not (if it is available). Defined values 1 on
0 off 188.959.15.4 Implementation188.96The implementation of text telephony can be done in two ways:
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