This will likely be a complex issue for many customers. Anyone that is relying on their telephone jack, and do not have cable/fiber services will need to upgraded before they can actually do anything. In such a community, the only option is cellular internet, or DSL. In either case, the customer will need to acquire an ATA (Analog Telephone Adapter), or a SIP phone. This is because the only role of the phone service jack will be to provide internet until fiber optic is rolled out to the community. Since the customer will have a phone number based off of their NIN, they will receive calls rather easily, just by remembering their NIN + a single digit depending on the number they wish to disclose.
In communities with just POTS telephone lines and no other infrastructure will have to be upgraded as quickly as possible. All such customers will be provided with a SDSL modem from their provider. They will then need to use that SDSL connection to connect to the LAN, and this will include telephones. Any POTS phones will require to plug into an ATA. The ATA will plug into the LAN, and the ATA will be programmed with your phone number’s SIP credentials. The subscriber will be encouraged to acquire a SIP phone which can be found in desk phones, or Wifi phones. If there is sufficient cellular broadband, and POTS is the only other option, then cellular broadband will be made available. Once the POTS lines are replaced with fiber optic, no new cellular internet services will be provided. This is done to reduce congestion, and give more capabilities to the actual cellular phone.
In communities with coaxial and POTS, the POTS will be taken down, and any new lines will be fiber optic. Telephone lines should be replaced with RJ45 connections, and run to a communications closet. If this is not an option, then a server with enough FXS ports will be required. This is because the POTS telephone network will be dismantled. In communities with all 3 options, then fiber will be the primary option resorting to coaxial only if there is no fiber to the premise. In the case of coaxial networks, there will likely be a need for a modem. Fiber lines will be converted from a coaxial jack to a RJ45 jack. This will eliminate the need for a modem.
In premises that chooses to not change their telephone lines in the premise to RJ45 will still be able to use the telephone jacks, but they must run to a server with enough FXS ports to support the number of telephone jacks. The server will then carry the calls via SIP. If there is any communications renovations, then the telephone jacks must be replaced with RJ45.
One could also bypass the terrestrial telephone system completely, and go cellular for all of their phones. This might be a little more expensive, but a provider is required to provide an affordable solution since telephone is an essential service. In such case, the subscriber should get a smartphone. When the subscriber needs a fax line, then plug into the telephone jack then to a telephony server, or upgrade the line to RJ45, and use an ATA. The same goes for elevators.