Hi, <br>&nbsp;&nbsp;&nbsp; I'd like to implement a blacklist to block specific destination prefixes in all calls. Is there any module to do this with mysql?,. Or please can someone help me and drop me a line on how can i do this kind of thing with ser.?. 
<br>&nbsp;&nbsp;&nbsp; My idea is to have a list of the prefixes to block, and if the number dialed matches one of those prefixes drop the call.<br>Is it possible?<br><br>Thanks in advance.<br>