Re: See, sensible people do plan for emergencies. How do we convince the IT departments?
Meanwhile the 48V DC powered steam era PABX plus any analogue phones retained for emergency planning reasons (everybody does that, right?) just carry on working. No worries.
" I ... have an old-fashioned wired handset conencted. Total power outage, cell tower down, doesn't matter. That phone always works. Sometimes that guarantee is critical."
See, sensible people do plan for emergencies. How do we convince the IT departments?
Many times it is not the It department that need to be convinced, its the fucking bean counters. Real life experience: Shithead bean counter rams through a cost cutting move to shitcan over 100 analog POTS lines, old, but perfectly functional PBX and analog desk sets; and replace them with VoIP PBX, and softphones.
Well, one day, the VoIP system completely failed, and it was down for 2 full days. Over 200 employees were not able to make or receive calls; they were completely dead in the water. Guess who got promoted to a new position with a new employer once the dust settled???
They re-instated the analog POTS lines, and the old PBX equipment, and got rid of that clusterfuck that crippled their business.
Thank $DEITY that they did not allow the VoIP equipment supplier remove the old PBX. Sometimes, you have to closely examine all of the "what if" situations.