Hi, On 23 Nov 2010, Lucas De Marchi wrote: > +Interface org.ofono.TextTelephony [...] > +Properties boolean Powered [readwrite] > + > + This property will enable or disable the text > + telephony feature in the modem. > + > + Text telephony (TTY), also known as TDD, is a feature > + present in some modems that allow them to be used by > + hearing impaired people.
just to clarify, I guess this covers all aspects of TTY support handled by the modem? E.g. for modems, TTY/CTM support can mean: - signaling TTY/CTM support as a capability (e.g. in Bearer Capability of 24.008 at the start of calls) ->all modems that support TTY do this - above plus: performing CTM coding on modem ->some modems - above plus: handling audio input/output ->some modems So depending on the modem, enabling TTY with this new oFono interface enables all of the above (those the apply), right? This makes sense as AFAIK there is no need to control the different aspects separately (and is analogous to handling voice calls in general with oFono), but just making sure I understand the semantics correctly. If in the future ofono clients need more information about the speech data path processing (w.r.t. TTY), that can be then added to org.ofono.AudioSettings interface (e.g. whether modem does CTM coding, whether it supports HCO/VCO (does voice go through at all when TTY mode is enabled). But until we have a modem (and use case) that needs this, it's too early to add these. E.g. Nokia N900 does not support TTY, but if the support was added, in theory it could technically do CTM coding both on modem and/or on Linux side. br, -- Kai Vehmanen _______________________________________________ ofono mailing list [email protected] http://lists.ofono.org/listinfo/ofono
