Hi Vali! Can you summerize me why you do not suggest to use PJSIP for such purposes as attended call transfer? Why can PJSIP not act as a B2BUA? Where has to PJSIP be changed/enchanced to be able to act as B2BUA? Thanks & regards: Gabor > -----Original Message----- > From: pjsip-bounces@xxxxxxxxxxxxxxx > [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of Tom?? Valenta > Sent: Friday, June 19, 2009 11:19 AM > To: pjsip list > Subject: Re: VXML Browser and PJSIP/PJMEDIA > > 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.
