Hi, I would like to be able to bring a further ISDN feature to IAX: "data call".
I just learned, that app_ppp and app_zap_ras are already using the ISDN feature of "data call". Further I learned from wiki, how to put PRI channels into "data call" mode instead of "voice call" mode. Anyway, one may whish to transport ISDN raw data to another asterisk box or to a modified iaxmodem, also supporting the new feature of ISDN raw data. Imho, this won't be much effort using IAX. I would like to make some tests and experiments about this. First of all, I would like to know, whether my attempt is the right way: I would either introduce a new frame type for IAX, e.g. #define AST_FRAME_RAW 11 /* digital raw data */ When asterisk does link an ISDN data call channel to an IAX channel, it will send the ISDN data as IAX AST_FRAME_RAW frames, and will accept from the IAX channel only those AST_FRAME_RAW frames in order to send them to the ISDN channel. Alternative: Maybe it would be more smooth from the pbx view, better not to introduce a new frame type, but a new "voice codec type" which could be called AST_FORMAT_RAW. In this case, one could use the existing negotiation method in order to get the right data types connected. When on the ISDN side the mode is "data call", it will only support the pseudo voice codec "RAW". Please tell me any hints, what you think about my ideas! Any idea, how to make better, is welcome! Roger. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
