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<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline">Hello dears</span></font></div>
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<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline">when i was trying to build an IMS platform by using kamailio </span></font><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 11pt;">with
sip digest authentication scheme and ims_auth module, i couldn't register </span><span style="font-size: 11pt;">and the result was as following :</span></div>
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</span></div>
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<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline"> 1-</span></font><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px;">the
first register message passed to the s-cscf then </span><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px;">S-cscf
replaying</span><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px;"> with the message “</span><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px;">401
unauthorized - challenging the ue</span><span style="color: rgb(33, 33, 33); font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; font-size: 15px;">”</span></div>
<div style="-webkit-font-smoothing: antialiased; margin: 0px 0px 0px 36pt; padding: 0px; border: 0px; font-size: 15px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; vertical-align: baseline; color: rgb(33, 33, 33); -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255)">
<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline">2- the second register pass to the S-cscf with the authorization
header then the S-CSCF replying with "Forbidden - Private identity not found (Authorization: username)"</span></font></div>
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<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline"><br>
</span></font></div>
<div style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; vertical-align: baseline; color: rgb(33, 33, 33); -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255)">
<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline">So based on that could any one tell me what is the reason of this
error and how to fix it ?? </span></font></div>
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<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline"> </span></font></div>
<div style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 15px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; vertical-align: baseline; color: rgb(33, 33, 33); -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255)">
<font size="2" style="-webkit-font-smoothing: antialiased;"><span style="-webkit-font-smoothing: antialiased; margin: 0px; padding: 0px; border: 0px; font-size: 11pt; vertical-align: baseline">Thanks in advance </span></font></div>
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