Transferring inbound calls to an outbound trunk.

[TAnselm]

Ok Where are the routing gurus?
Have an incident here where big bucks were rung up on outbound calls and the only thing we can figure is that they were transfered to long distance numbers. What prevents an inbound call from be transfered to an outbound trunk? I thought it was the TRMB in the Route data block, but I changed that to NO and can still transfer out.

 

[johnpoole]

trmb has to do with tandem connections, but not transfer.. what makes you think it's internal callers that are doing this? one way to stop that is to set opt cfo and make the inbound trunk ncos 1.. if the call requires a ncos above that and the trunk is ncos 1, with the cff (call forward forwarding) it will also block transfer to that trunk.. the best thing to do is look at the cdr, make the stations either ld deny or enable auth codes and track auth codes back to the user... 90 percent of that type of fraud is going to be thru the mail, not internal callers... if your allowing users to set casual passwords in mail, i can usually hack a switch in under an hour... people use the dn backwards or 1111 0000.. if so i can set the revert to 9 from home and call anyone on the planet.. as long as i set it back to 0 i can use that doorway forever.,.. all i need is one mailbox password, the number of calls i make is only limited by your trunks...

john poole
bellsouth business
columbia,sc