Hi Kishore, you are asking exactly about what I am doing. At our department we have a VoiceXML interpreter with TTS and ASR engines which is able to communicate via ISDN. We needed it to support SIP telephony as well and decided to implement it with PJSIP library (namely PJSUA). I can recommend it, it is pretty easy and provides sufficient functionality. One more experience. PJSUA (or PJSIP as a whole) is designed as a client library. In VoiceXML software where attended call transfers and similar features are needed (3PCC -- 3rd party call control) it is better to act as B2BUA (back to back user agent -- fork a call and act as a client on both sides). Do not do this with PJSIP (or let me know if you succeed :)), it is better to implement just basic telephony functionality in your VoiceXML interpreter and use a proxy/gateway (e.g. Asterisk) for advanced call control features. By the way, PJSIP does not support in-band DTMF detection, but it is very easy to implement it as a custom PJMEDIA port. Good luck! - Vali Kishore Annapureddy napsal(a): > Hi all, > > I am a newbie to this field trying to understand the technologies and > design some applications. I have a question here: > > Is it possible to integrate VXML browser into an application based on > PJSIP libraries? I have gone through examples and find the PJSIP system > to be very powerful. Hence I would like to know if this has already been > done... any pointers on how to go about it will be very helpful. I am > trying to use openVXI and festival TTS engine to create a VXML browser. > I am currently in the state of digesting these technologies. Hence any > pointers in this regard will be very helpful to me. > > Thank you all, > KK. > > > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
