said by Network Guy:Landline is a landline, telephony line is a telephone line.
VoIP isn't the new "landline" it is the alternative to it.
There are still many legacy apps that require a traditional POTS line. Cheaper credit card terminals, telehealth vitals monitoring, etc. Sometimes T38 protocol enabled on a softswitch provider isn't enough to make it work.
Landlines are still relevant. It's just that telcos don't wish to maintain a product that isn't netting them 300% profit.
Bingo! I know in my line of work (government), having a dedicated voice landline and dedicated fax landline is a must.
