2. If your network is partially TDM and partially VOIP, have you experienced any issues with either of them? What are your future concerns since STIR/SHAKEN does not work with TDM?
This will certainly weaken the benefits of S/S since the ID Header will be stripped off along many paths. Out Of Band S/S is slow moving but may help in the long run. In the mean time it's no worse than before S/S of course....
3. My biggest complaint as a residential consumer is that caller ID no longer shows up like it did. Unless I have the number in my phone, I only see something along the lines of Scam Likely or a phone number with no caller ID. I find this quite irritating since it prevents me from determining if its a friend whose carrier hasn't implemented it yet or an actual scammer. Anyone else have complaints about what information is being passed?
As Paul said this is a function of the CVT and your carrier. RCD might help a little although the CVT will still control the CNAM delivery display.
7. One of my greatest concerns I have about the September implementation is that carriers will get no warning if/when they are going to be blocked. I haven't seen anything that states a terminating carrier or intermediate carrier has to give a warning muchless disclose that they will start blocking another carrier's traffic. Maybe there is a hotline to call if your traffic is being blocked unjustly, but I haven't heard of any. Have you? Normal routing issues are already a nightmare to deal with. Hopefully this will not make it worse or just another method for anti-competitive carriers to take out their competition!
You need to monitor you calls for Cause Code 608s. Although it's not always passed end-end the tracking is helpful and you won't know until the calls are being rejected.
8. The last question leads me to the next one. I know there are some carriers using their underlying carrier's certificate so they didn't register for the Robocall Mitigation Database. I didn't recommend this, but I heard through the grapevine some consultants / underlying carriers did. If those who didn't sign up for the Robocall Mitigation Database have legitimate traffic shut down, what will happen to all their legitimate customers? Will they be out of service until the ITG gets around to figuring it out? Has anyone heard of a plan to address the impact on consumers displaced by this?
It sounds a bit like Delegated Certs before they're adopted. I wouldn't want to bet my business that those calls will go through for long. Good luck, ~Glen Cognexus, LLC 7891 Avenida Kirjah San Diego, CA 92037