There's a lot of old test numbers out there for the phone system - number readbacks, echo testing, tone testing, information lines, etc. They're not used much anymore, but for those who still work with switchgear they can be useful. They're also useful to forward spammy callers to, because the numbers are automated and will just take calls.
Disclaimer: I have no idea who runs this stuff anymore.
Some of the ones I still know about:
248-434-5508 Voice / Music Line Test
800-444-4444 Number Readback <--- This one has a menu tree for some reason
909-390-0003 Echo Test
503-697-1000 Milliwatt Tone Test
There's a lot of old test numbers out there for the phone system - number readbacks, echo testing, tone testing, information lines, etc. They're not used much anymore, but for those who still work with switchgear they can be useful. They're also useful to forward spammy callers to, because the numbers are automated and will just take calls.
Disclaimer: I have no idea who runs this stuff anymore.
Some of the ones I still know about:
248-434-5508 Voice / Music Line Test
800-444-4444 Number Readback <--- This one has a menu tree for some reason
909-390-0003 Echo Test
503-697-1000 Milliwatt Tone Test
(post is archived)