[SIPForum-discussion] Blocking Specific Calling Number from PSTN

[qinghao_howard.zhou at bell.ca]

Hello all,

As per the call flow below, could anybody guide me through how to block specific calling number from PSTN?
Is it possible that the incoming call could be blocked at voice gateway?  If yes, how?

PSTN -> digital T1 ->SIP voice gateway -> Cisco Call Manager -> corporate user


Thanks in advance,

Howard Zhou


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20100616/76a8b388/attachment-0002.html>