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't. 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. -Steve On 30 July 2010 17:18, Fabio Pietrosanti (naif) <lists@infosecurity.ch>wrote:
Hi all,
is there a method to blacklist certain SIP user agent or better just allow certain SIP user agent to log-in ?
Fabio
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