99%? If a phone number was used than the PSTN was used. The fact that SIP is involved in part or all of the call path is not very relevant except for peer-to-peer stuff like whatsapp, skype, signal, telegram, etc. (and even those don't use SIP, but I think you meant voip more than SIP specifically) Even some of those can use e.164 for part or all of the path.
I do believe that if the robo call/scam/fraudulent call issue does not get resolved people may eventually start to give up and just use apps like that. Many probably have already. *Brandon Svec* *15106862204 <15106862204> voice|sms**teamonesolutions.com <https://teamonesolutions.com/>* On Thu, Sep 10, 2020 at 1:11 PM Michael Thomas <[email protected]> wrote: > > On 9/10/20 9:49 AM, Sean Donelan wrote: > > > > At this month's FCC rulemaking meeting, it will consider > > > > > https://www.fcc.gov/document/fcc-announces-tentative-agenda-september-open-meeting-6 > > > > > > Promoting Caller ID Authentication to Combat Spoofed Robocalls – The > > Commission will consider a Report and Order that would continue its > > work to implement the TRACED Act and promote the deployment of caller > > ID authentication technology to combat spoofed robocalls. > > (WC Docket No. 17-97) > > > So I have a question: what percentage of traffic in the US is really > coming from the legacy PSTN? My understanding is that it's pretty low > these days. > > If that's true, it seems to me that this is a SIP problem, not an e.164 > problem. > > Mike > >
