When you directly dial an announcement extension, for which an announcement has not been recorded, you hear silence instead of a busy tone with the VAL-type sources, such as the v VAL source.
Note:
You must wait 15 seconds after you record an announcement before you can dial the extension to hear the announcement replay. During this 15-second window, you cannot record a new announcement, and no one can play this announcement. However, you can rerecord the announcement during this 15-second period. To rerecord the announcement, dial the Announcement FAC, dial the extension, and then press 1 before the 15-second timer expires.