We just installed a Magix 3.0 will CID and messaging. In order for users to check voice mail from outside, we assigned a CID (#599) to a phantom extension will mail box setup as integrated VM. It works fine most of the time but users are starting to report that every once a while when they called in, the AA (no greetings) did not pick up and the call went straight to the operator directly. Anyone knows what we are missing here? We have a 4 ports messaging.