[Freeswitch-users] Change some variables.

Hello. How can I change this variable: Caller-Username: Caller-Caller-ID-Name: Caller-Caller-ID-Number: Caller-Orig-Caller-ID-Name: Caller-Orig-Caller-ID-Number: Caller-ANI: Other-Leg-Username: Other-Leg-Caller-ID-Name: Other-Leg-Caller-ID-Number: Other-Leg-Orig-Caller-ID-Name: Other-Leg-Orig-Caller-ID-Number: Other-Leg-ANI: in bleg? This contain some sensitive data which I don't want to send to external gateways of voip providers. -- Mimiko desu.