Lately, several contributed articles by such companies as Texas Instruments, Centillium, and Mindspeed, as well as an excerpt from Internet Phone Services Simplified by Jim Doherty and Neil Anderson delivered a wealth of basic to advanced information on Voice Over IP (VoIP).
If you missed any of the submissions, here you go: Try VoIP security starts with the boot, Security for VoIP--A primer, Remove vulnerability from SIP-based VoIP networks Part I, and Part II, and finally, Voice over IP (VoIP)--The basics.
VoIP commands a high level of interest on this site. Seeing how fast these articles tally up page views on NSDL, I know there's a need for continued coverage--but where do you need to see more data? What hasn't been covered regarding VoIP that is important to you?
Go to Where is your VoIP pain and let me know what you'd like to see on the site.