I liked this little excerpt I came accross yesterday in some DD notes.
One of their more significant patents, Routing, Billing and Rating (RBR), has been issued with a date of September 27, 2013. Upon its issuance a multi-billion dollar patent infringement was immediately created.Industry experts estimate that the RBR technology will generate in excess of $1 billion per year in revenues because it will require a licensing fee to be paid on every single VoIP call placed on the planet. Skype users alone account for over 2 billion minutes of VoIP calls placed each and everyday, requiring RBR technology. Read more at http://www.stockhouse.com/companies/bullboard/vplm/voip-pal-com-inc#zUgiR1qbtiWgddEz.99