The Messaging, Malware and Mobile Anti-Abuse Working Group (M3AAWG) is holding a special interest group in their annual conference in San Francisco, February 17-21, to focus on issues unique to voice.
More news about the FTC going after robocallers/Voice SPAM generators, who are scamming consumers.
J. Oquendo has created the "VoIP Abuse Project" or "VoIP Blacklist Project"
The FTC just fined and won a judgement against a group of companies who have been generating robocalls and voice SPAM, as part of a scam to defraud consumers. While a lot of the reason was due to the SCAM, it is also an additional indicator that the FTC is serious about dealing with the robocall issue. I would expect to see more fines and judgements, although there is no way it will stop the robocall issue. It might slow down "legitimate" and reachable companies, but not the hackers.
Here is a link to a recent presentation for an analysis of a massive scan of the entire IPV4 address range for SIP servers:
Here is a link to a petition to the FCC, from a bit-time spammer, to request that service providers do not block political voice SPAM and texts.
The FTC held a recent summit conference and has created a challenge to the industry to identify solutions to unwanted robocalls.
Here is another article talking about how automatically generated (robodialing, robocalls) marketing and SPAM calls are on the rise
There has been a fair amount of press about a fraud ring that was broken up by the FBI.
Here is an article and several Youtube videos describing an attack on the UK MI6 organization (their equivalent of the CIA).