<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>
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<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
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<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>
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<div>Thanks in advance!!!</div>