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                    I think you'd better ask the freeswitch-dev list.
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                <div><div><br></div><div>--&nbsp;</div><div>About: http://about.me/dujinfang</div><div>Blog: http://www.dujinfang.com</div><div>Proj: &nbsp;http://www.freeswitch.org.cn</div><div><br></div>Sent with <a href="http://www.sparrowmailapp.com">Sparrow</a><br><div><br></div></div>
                 
                <p style="color: #A0A0A8;">On Wednesday, February 29, 2012 at 9:18 PM, 逆水行舟 wrote:</p>
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                    <span><div><div><div><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">Hi,</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">I&nbsp;would&nbsp;like&nbsp;to&nbsp;use&nbsp;my&nbsp;own&nbsp;equipment&nbsp;for&nbsp;the&nbsp;endpoints&nbsp;transcoding&nbsp;not&nbsp;by&nbsp;&nbsp;freeswitch.</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">S</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">o&nbsp;I&nbsp;want&nbsp;to&nbsp;modify&nbsp;the&nbsp;sdp.&nbsp;The&nbsp;media&nbsp;stream&nbsp;to&nbsp;point&nbsp;to&nbsp;the&nbsp;transcoding&nbsp;device.</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">I</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">s&nbsp;there&nbsp;anyway&nbsp;of&nbsp;modifying&nbsp;o=&nbsp;and&nbsp;c=&nbsp;in&nbsp;sdp&nbsp;protocol?</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">(</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">modify&nbsp;ip&nbsp;and&nbsp;port&nbsp;of&nbsp;rtp&nbsp;server&nbsp;in&nbsp;sdp</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">)</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">H</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">ow&nbsp;to&nbsp;modify&nbsp;the&nbsp;sdp&nbsp;with&nbsp;in&nbsp;C&nbsp;code.&nbsp;&nbsp;</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">Other&nbsp;methods&nbsp;to&nbsp;achieve</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">&nbsp;it?&nbsp;</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">Any&nbsp;idea?</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><br></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">Thanks&nbsp;</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; ">!</span><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'宋体'; "><br></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; ">best&nbsp;regards!</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style="mso-spacerun:'yes'; font-size:10.5000pt; font-family:'Times New Roman'; "><o:p></o:p></span></p></div></div><div><div>_________________________________________________________________________</div><div>Professional FreeSWITCH Consulting Services:</div><div><a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a></div><div><a href="http://www.freeswitchsolutions.com">http://www.freeswitchsolutions.com</a></div><div><br></div><div>FreeSWITCH-powered IP PBX: The CudaTel Communication Server</div><div><a href="http://www.cudatel.com">http://www.cudatel.com</a></div><div><br></div><div>Official FreeSWITCH Sites</div><div><a href="http://www.freeswitch.org">http://www.freeswitch.org</a></div><div><a href="http://wiki.freeswitch.org">http://wiki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