VoIP has come a long way since it was first popularized by VocalTec in the mid 1990s. Here is a slideshow of the Top 20 VoIP Innovators of all time with photo captions explaining why they merit this top 20 ranking. Most innovators are companies, but not all. Two important VoIP standards make the list, which cannot be attributed to a single individual or company. Before the slideshow, below are some honorable mentions that didn't make it into the slideshow, but are certainly worth mentioning for their contribution to the VoIP industry.

Honorable Mentions:
AudioCodes,
Avaya ,
Deltathree,
iBasis,
ITXC,
Mitel,
Net2Phone

And now for the slideshow!

Note: They are ranked in reverse ranking order with 20th listed first and 1st listed last. Make sure to read the caption under each picture. On smaller screens with lower resolutions you may have to scroll down to see the full caption for each photo. RSS Subscribers: You have to view this on the site to see the slideshow.