@bigjay That isn’t true. If you try to call 911 from Skype the call will fail. The official statement is:
WARNING: The current version of Skype software does not support calls to any emergency number nor emergency service (e.g. 211, 911, 999 etc). To perform calls of this type please make sure to use a landline telephone or a cellular/mobile phone.
In some cities in the U.S. you can send a text message to 911, but it depends where you are as most areas do not support it.
Much of the 911 call center/dispatch architecture seems to be archaic.