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Ext. by ext. PSTN call blocking

Under CCM IPT deployment, is it possible to control (by CCM) that some users have DID while other users do not have (accept only internal call)?

3 REPLIES
Hall of Fame Super Red

Re: Ext. by ext. PSTN call blocking

Hi Lawrence,

This is possible using CCM. What we do is the following;

DID Range ** xxx-240-60xx to xxx-240-69xx this is used for standard users.

Internal Incoming Access Range ** 27xx,28xx,29xx these 4-digit numbers can be called On Campus only and can call Off Campus, but cannot be called from the PSTN.

So just assign a pool of numbers outside your DID Range for this purpose. For Outgoing calling these DN's can be assigned any CSS etc.

Hope this helps!

Rob

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New Member

Re: Ext. by ext. PSTN call blocking

Rob,

Sorry for belated response...

Actually, as my customer already having her private extensions assigned inside the DID range, so I am actually looking for something that can be configured extension by extension inside CCM...

Thanks and Regards,

Lawrence

Silver

Re: Ext. by ext. PSTN call blocking

Hi,

It is possible, but depending on you setup can be quite complex.

One way is to ensure that your dial-peer configuration does not match the extensions you do not want to be reachable directly from the outside.

If the extensions are not in a range this means creating a lot of dial-peers :-(

Another way is that you add a prefix before the H.323 gateway forwards to CCM, then add translation patterns that match the extensions+prefix that should be reachable using DID to be translated so that the prefix is removed again. This is most likely the easiest way if you have a H.323 gateway and the extension are not in one range.

If you're using a MGCP gateway there are probably other possibilities using partitions and calling search spaces, but I am not familiar with MGCP gateway config, so I'm not able to tell nor verify.

I would go for option 2 :-)

Hope it helps,

Leo

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