Why would you want to? Almost any device can change the user agent it sends, either bypassing a blacklist or hitting a whitelist when it shouldn&#39;t.<br><br>If you really want to, then it would be possible from the dialplan by creating an extension that matches against the sip_user_agent variable and hangs the call up before processing the rest of the dialplan.<br>
<br>-Steve<br><br><div class="gmail_quote">On 30 July 2010 17:18, Fabio Pietrosanti (naif) <span dir="ltr">&lt;<a href="mailto:lists@infosecurity.ch">lists@infosecurity.ch</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi all,<br>
<br>
is there a method to blacklist certain SIP user agent or better just<br>
allow certain SIP user agent to log-in ?<br>
<br>
Fabio<br>
<br>
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