For US based users you need to prepare for what 2022 has in store for you. I’m sure many have seen the Sangoma notices about traditional POTS (UNE Analog) being retired. In addition to that, 2022 is the year that all the major mobile carriers will be shutting down their GSM and CDMA networks.
This means that anyone still depending on traditional copper based POTS lines will need another solution. I’m not 100% on how the small, independent incumbents that 100% are the only carrier present are going to do this. However, incumbents such as AT&T, Verizon, Lumen (Level3/CenturyLink/Qwest), US Telecom and others are 100% discontinuing their traditional POTS services. This will impact any competitive carrier (CLEC) that is on their infrastructure.
At the same time, the major mobile carriers such as AT&T, Verizon, T-Mobile, US Cellular, et al. are in the process of shutting down their GSM/CDMA networks so they can open the spectrum up for more use in the 4G/5G range. This will mainly impact anyone that is relying on GMS Over IP devices for their systems. Granted there is a global push for GSM/CDMA to go away but other countries will have their own time lines but those can be pushed up. For example, Canada will still have GSM/CDMA at the end of 2022 meaning going from Canada to the US could result in the roaming you used to have no longer working because there are no GSM/CDMA networks to connect to. This will probably step up Canada’s retirement as it will impact A LOT of people and a few industries (logistics/trucking is a good example).
The big thing with both of these technologies being retired is that Verizon is being overly aggressive with the shutdowns. They have already starting notifying POTS customers to have an alternative in place because April 30th is their deadline. Copper will go dead after that date. This also seems to be the same date they plan on starting to shut down GSM/CDMA. So if you are a Verizon customer using either of these technologies and you haven’t done anything, do something now.