Microsoft Purview DLP Extends to Microsoft 365 Copilot

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As organizations increasingly adopt Microsoft 365 Copilot to enhance productivity and collaboration, ensuring the security of corporate data becomes more and more important. Microsoft Purview Data Loss Prevention (DLP) offers a robust solution to safeguard sensitive information. Purview's new and upcoming DLP capabilities can soon help secure your organization's use of Copilot even better. Microsoft Purview Data Loss Prevention (DLP) is expanding its capabilities to support Microsoft 365 Copilot. This enhancement will allow DLP policies to identify sensitive documents using sensitivity labels and exclude them from processing in Microsoft 365 Copilot Business Chat. The feature will be available for customers who already have E5 (or equivalent) licenses together with copilot licenses. Information protection admins can then create policies that will include Microsoft Copilot in addition to all of the existing services. The preview started in late November, and it should be availab...

Pushing the SBC 2000?

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Recently, I ran into what seems to be an undocumented limitation in the SBC2000's from Sonus.

I have a customer who wanted to do billing based on a subscriber-ID from the telco provider. In order to do so, we created a lot of transformation rules to catch different number ranges based on calling number and then populate a "SG User Field" with a pre defined string.

fig1 - transformation)


On the outgoing trunk, we enabled header manipulation to add a diversion header populated with the subscriber-ID we wanted to bill the call to (a call without the diversion header would be blocked by the telco).

To set the the correct diversion header, we created a series of conditional rules and header manipulation rules.

fig 2 - conditional rules)


At first it all seemed to work fine, but then failed calls were reported, and we could not figure out what was wrong. It seemed like random errors, but it soon turned out to be related to certain calling number ranges.

All failed calls had a conditional rule and a matching header manipulation rule way down in the list of rules. A thought struck me, and I moved the failing rules to the top. This resulted in an instant success, but new users now reported failed calls. Again, these failed attempts came from users related to lists at the bottom.

fig 3 - header rules)


We opened a tac at Sonus, and soon learned there is a limit of 32 rules within the SBC (a close look at the fig above will reveal 64 rules ) . As soon as we trimmed the lists to be less than 33 rules, all calls were successful.

I have not been able to find this limitation in the official documentation from Sonus, but hopefully it will soon be updated. I am also surprised it is possible to create more rules than the Sonus can handle. It would make more sense to me if the creation of the 33 rule failed in the interface, than for me to discover the limitation by "accident".

I'm hoping the interface gets an update to reflect the limitation, or a change to allow for more rules to be created.

So if anyone else out there is trying the same "crazy" thing as me, to have more than 32 rules within a Message Rule, please don't it won't work ;)