Change the lengths under dial plan (both default and prefix 1). Increase the current setting by 3 and you will be fine. Be warned that when you do it will increase the delay on dialing a call without the *67 by about 1 second though.
Name and number blocking for PRI
When activated, Feature 819 allows you to block the outgoing name and/or number on a per-call basis. Name and number blocking can be used with a Norstar or BST telephone, but not with an ISDN terminal.
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