Can they get your location if you call 911 and hang up from a cellphone? Where I live (in Canada), one time I did some test using a VOIP application, I have no

Can they get your location if you call 911 and hang up from a cellphone? Where I live (in Canada), one time I did some test using a VOIP application, I have no idea why or how, but it caused a call to 911 (I didn't even saw the call...). They called some minutes later to see if everything was alright and when I said it was probably my test using VOIP that caused that, they understood instantly, like it wasn't unusual.