PRESENCE BASED DTMF SIGNALING ENABLEMENT OF VOICE COMMUNICATION CONTROLLER AND METHOD

摘要

A voice communication controller 100 (e.g., private branch exchange (PBX) ) is described herein which can automatically enable an outbound dual tone multi- frequency (DTMF) feature for one of it' s extensions 102 while participating in a session with an external DTMF communication system (e.g., a conference/collaboration bridge 114a, an interactive voice response (IVR) system 114b, or a voice mail system 114c). This is desirable because if the user 106 presses button (s) on their phone 104 then the voice communication controller 100 which has enabled the outbound DTMF feature will not attempt to ' process the corresponding DTMF digit (s) but instead will automatically transfer the corresponding DTMF signal (s) to the external DTMF communication system 114a, 114b, 114c. Specifies that a presence server is used to determine whether DTMF should, be activated or not, however not presence information is used. Simply the dialled telephone number is analysed to determine the activation of the DTMF or not.