User's Manual Part 2
Firmware Version 1.0.0.1  UCM6200 Series IP PBX User Manual  Page 177 of 320
FAXWITHTWOMEDIA
The UCM6200 supports Fax re-invite with multiple codec negotiation. If a Fax re-invite contains both T.38 and 
PCMA/PCMU codec, UCM6200 will choose T.38 codec over PCMA/PCMU. 
BLACKLISTCONFIGURATIONS
In the UCM6200, Blacklist is supported for all inbound routes. Users could enable the Blacklist feature and 
manage the Blacklist by clicking on "Blacklist". 
  Select the checkbox for "Blacklist Enable" to turn on Blacklist feature for all inbound routes. Blacklist is 
disabled by default. 
  Enter a number in "Add Blacklist Number" field and then click 
  to add to the list. 
  To remove a number from the Blacklist, select the number in "Blacklist list" and click on
. 
Figure 106: Blacklist Configuration Parameters 
  To add blacklist number in batch, click on 
  to upload blacklist file in csv format. The supported csv 
format is as below. 










