Patent ID: 9350854
Filing Date: 2016-05-24
CPC Classification: H04M

Claim Text:
1. A method of policing a call request in a computer telephony (CTI) system comprising a plurality of computer terminals and a plurality of telephone terminals, in which a user is associated with a set of permissions; the method comprising: receiving at a CTI server from the user via one of the computer terminals a request to set up a call to a destination telephone terminal; in which the call set-up request identifies the user; in which the CTI server compares the call set-up request with the set of permissions associated with the user; and allows or blocks the call set-up request depending on the permissions; in which the call set-up request is associated with a source telephone terminal and a number identifying the destination telephone terminal; in which the source telephone terminal is an extension to a first PBX; in which the CTI server forwards an allowed call set-up request to the first PBX; in which to enable the call at the first PBX, the CTI server adds a special prefix to the destination telephone number before forwarding the allowed call set-up request to the first PBX; and