Telephonic communications
With usage measurement
Call charge metering or monitoring
Inventor
active
System and method for blocking uncollectible random traffic...
System and method for verification of customer information...
No associations
LandOfFree
John E. de Freitas does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John E. de Freitas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John E. de Freitas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-2645895