I've looked through the posts to find something exactly the same, but haven't been successful in finding a solution. I currently have two DNs on my CS1000 that need to have all outgoing calls through our voice T1s show up as 'blocked' on the other end. No other outgoing calls from any other DNs can be blocked, however. Is there a feature code or function that I can configure/enable to allow this behavior?

Currently running 61C 5.5, phones in question are M2008HF.

TIA!

Build another CLID table with nothing in the number fields, then assign to the phones. This may not show as "blocked" though, just nothing in the display. To specifically show blocked, you may have to contact the telco and have them do something with those two extensions on the outbound circuit.

Set CLS CLBA

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Oh, that does the whole TN.  Maybe you don't want it done by "TN"

trvlr1 has the idea, but if you MUST see "blocked", do this:

Create an LD57 FFC for CPP and make it *67.  Then dial like this:
*67-9-1414-555-1212

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It doesn't have to read 'blocked' at the other end, however it does read our main number (all calls sent out have a CID of our main number) -- I was told once before that this was setup, however I don't see anything in the configuration that would show this, and I'm honestly not too well-versed with the CS1000 at this time.

It could be for the whole TN, that's fine -- each user only has a local DN and an overflow DN, so that would work fine.

We are assuming you had PRIs for your outgoing calls.  If that is true, then you can control, to some extent, the Caller ID you deliver.  Here is the best guide to Nortel Caller ID.  It is easy reading too: http://www.ghtrout.com/files/CLID_Documentation_from_Nortel.zip

Adding CLS CLBA to the TN will block the caller ID from being sent on PRI.

Creating a new CLID table with a fake number can work, if the carrier does not override your system.  Sometimes they block numbers you do not own.

If you have some plain T1 (not PRI) lines or analog CO trunks, the Caller ID is generated at the carrier, not your PBX.

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Thanks for everyone's information -- I created a new CLID table and assigned the two DNs to it. Everything works perfectly.