<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:18pt"><div><span>Hi Carsten,</span></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span>Thanks alot for your response...</span></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 24px; font-family: HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">Actually I don't need an MSRP relay for file transfer between RCS clients. I am using the Kamailio MSRP relay to do file transfer between RCS and WebRTC, WebRTC clients aren't able to do peer-to-peer file transfer using MSRP, here is an MSRP relay needed, therefore I am using the Kamailio MSRP relay... I modified the RCS stack Implementation and did the file transfer from RCS to WebRTC possible with one small issue (mentioned in the last e-mail). But the problem is that the file transfer doesn't work in the other direction (WebRTC-to-RCS). I couldn't figure it out, why it only works in one direction but in the other not... I am confused :(</div><div></div><div> </div><div style="color:rgb(17, 17, 17);font-weight:bold;"><font size="3">Medo</font></div><div class="yahoo_quoted" style="display: block;"> <br> <br> <div style="font-family:
HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 18pt;"> <div style="font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> Carsten Bock <carsten@ng-voice.com> schrieb am 10:27 Montag, 21.Oktober 2013:<br> </font> </div> <div class="y_msg_container">Hi Medo,<br clear="none"><br clear="none">even if the popular IMS books (e.g. Camarillo's: "The 3G IP Multimedia<br clear="none">Subsystem") states something different and i made the mistake at my<br clear="none">last presentation at KamailioWorld stating something different, the<br clear="none">current MSRP-Implementation of Kamailio is not compliant to GSMA's<br clear="none">RCS-Specs.<br clear="none">With the known Implementations of RCS-Clients, you cannot configure a<br clear="none">MSRP-Relay. According to the Specs, you do not need a MSRP-Relay, but<br
clear="none">more a MSRP-Back-2-Back-Useragent (to implement "Store-and-Forward"<br clear="none">and Offline Message storage, instead of making an End-2-End Session),<br clear="none">which is not implemented in any Open-Source solution i know.<br clear="none"><br clear="none">Kind regards,<br clear="none">Carsten<br clear="none"><br clear="none"><br clear="none"><div class="yqt9967887918" id="yqtfd56297"><br clear="none">2013/10/20 mohammed alyaseen <<a shape="rect" ymailto="mailto:alyaseen98@yahoo.com" href="mailto:alyaseen98@yahoo.com">alyaseen98@yahoo.com</a>>:<br clear="none">> Hi all...<br clear="none">><br clear="none">> I am trying to do file transfer between IMS clients (web-based WebRTC and<br clear="none">> android RCS native client). The fisrt test scenario is browser-to-browser<br clear="none">> (WebRTC) using JSSIP stack. The second scenario is RCS-to-Broswer or<br clear="none">> Browser-to-RCS. My testbed consists
of OpenIMS and OverSIP for WebRTC<br clear="none">> clients and Kamailio MSRP Relay for file transfer<br clear="none">><br clear="none">> For file transfer I am using the msrp-crocodile library...<br clear="none">><br clear="none">> The scenario browser-to-browser works so far without problems. But in the<br clear="none">> second scenario I have the following problems:<br clear="none">><br clear="none">> When I try to transfer a file from the RCS client to WebRTC client ,<br clear="none">> kamailio sends the message "error ""481", "Session-does-not-exist", however<br clear="none">> the file is sent, when I click send for the second time...<br clear="none">> When I try to send a file from WebRTC client to RCS client, WebRTC client<br clear="none">> sends all file chunks to kamailio, kamailio receives the chunks but it<br clear="none">> doesn't forward them to the RCS client, in the console I see some errors<br
clear="none">> pointed to the configuration file, however I don't know what exactly the<br clear="none">> problem is. In the attachment please find the logs and the configuration<br clear="none">> file of the kamailio msrp relay...<br clear="none">><br clear="none">> Can any one help me to solve this problem or give me useful hints?<br clear="none">><br clear="none">> Thanks a lot in advance....<br clear="none">><br clear="none">><br clear="none">> Medo<br clear="none">><br clear="none">> _______________________________________________<br clear="none">> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br clear="none">> <a shape="rect" ymailto="mailto:sr-users@lists.sip-router.org" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br clear="none">> <a shape="rect" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a></div><br clear="none">><br clear="none"><br clear="none"><br clear="none"><br clear="none">-- <br clear="none">Carsten Bock<br clear="none">CEO (Geschäftsführer)<br clear="none"><br clear="none">ng-voice GmbH<br clear="none">Schomburgstr. 80<br clear="none">D-22767 Hamburg / Germany<br clear="none"><br clear="none"><a shape="rect" href="http://www.ng-voice.com/" target="_blank">http://www.ng-voice.com</a><br clear="none">mailto:<a shape="rect" ymailto="mailto:carsten@ng-voice.com" href="mailto:carsten@ng-voice.com">carsten@ng-voice.com</a><br clear="none"><br clear="none">Office +49 40 34927219<br clear="none">Fax +49 40 34927220<br clear="none"><br clear="none">Sitz der Gesellschaft: Hamburg<br clear="none">Registergericht: Amtsgericht Hamburg, HRB 120189<br clear="none">Geschäftsführer: Carsten Bock<br clear="none">Ust-ID: DE279344284<br clear="none"><br
clear="none">Hier finden Sie unsere handelsrechtlichen Pflichtangaben:<br clear="none"><a shape="rect" href="http://www.ng-voice.com/imprint/" target="_blank">http://www.ng-voice.com/imprint/</a><br><br></div> </div> </div> </div> </div></body></html>