Cisco Call Manager 4.: Block Sales Calls This topic has 0 replies, 1 voice, and was last updated 18 years, 7 months ago by John Bartley K7AAY. Viewing 1 post (of 1 total) Author Posts 17th April 2006 at 23:07 #30938 John Bartley K7AAYGuest How do I program Cisco Call Manager 4.13 to look at the Caller ID of incoming calls, and if it matches a particular number, block the call? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.