[SIPForum-discussion] Blocking Specific Calling Number from PSTN

Knupp, Varlei Fernandes varlei.knupp at siemens-enterprise.com
Thu Jun 17 19:12:16 UTC 2010

Hi Zhou,

If the gateway is a AudioCodes or Mediatrix, Yes.

Because the AudiCodes Gateway can change destination number based in calling number.


Varlei Fernandes Knupp
Global Customer Support
Office-  55 11 38172659
varlei.knupp at siemens-enterprise.com<mailto:varlei.knupp at siemens-enterprise.com>

Siemens Enterprise Communications, Inc.
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From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of qinghao_howard.zhou at bell.ca
Sent: quarta-feira, 16 de junho de 2010 14:57
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Blocking Specific Calling Number from PSTN

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

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