<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>Toyima,</div><div><br></div><div>The client can request an expiration time. It's the proxy that ultimately determines how long the registration is valid, and that is the value that gets communicated back to the client in the 200 OK from the proxy.</div><div><br></div><div>How does the proxy decide? Take a look at this link and the two entries following it:</div><div> http://www.opensips.org/html/docs/modules/1.6.x/registrar.html#id249121</div><div><br></div><div><br></div><div><br></div><div>- Jeff</div><div><br></div><div><br></div><span id="OLK_SRC_BODY_SECTION"><div style="font-family:Calibri; font-size:11pt; text-align:left; color:black; BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt"><span style="font-weight:bold">From: </span> Toyima Dias <<a href="mailto:toyimads@gmail.com">toyimads@gmail.com</a>><br><span style="font-weight:bold">Reply-To: </span> OpenSIPS users mailling list <<a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>><br><span style="font-weight:bold">Date: </span> Tue, 1 Feb 2011 04:58:32 -0500<br><span style="font-weight:bold">To: </span> OpenSIPS users mailling list <<a href="mailto:users@lists.opensips.org">users@lists.opensips.org</a>><br><span style="font-weight:bold">Subject: </span> [OpenSIPS-Users] Registration process<br></div><div><br></div><div><font face="verdana,sans-serif">Hello, </font></div><div><font face="verdana,sans-serif">I'm a little confuse about the process of registration, who does set the expiration time on a REGISTER request? is it done by the Proxy? or may be the client? i've read on the RFC 3261 the following:</font></div><div><font face="verdana,sans-serif"></font> </div><div style="TEXT-ALIGN: center"><font face="verdana,sans-serif"><font face="tahoma,sans-serif">"Version 1.0 StartHTML:0000000105 EndHTML:0000000682 StartFragment:0000000424 EndFragment:0000000646
</font></font></div><p style="TEXT-ALIGN: center; TEXT-INDENT: 0px; MARGIN: 0px; -qt-block-indent: 0"><font face="tahoma,sans-serif"><span style="font-family: 'Courier New', courier; ">If neither mechanism for expressing a suggested expiration time is<br>
present in a REGISTER, the client is indicating its desire for the<br>server to choose.!</span></font></p><div><br>That means that the UA can send or not the expires in the contact? what about if the expiration date finish?what should be done? the REGISTER server sends some message to refresh the binding?</div><div> </div><div>Thanks in advance!!!</div></span></body></html>