Interestingly (or perhaps annoyingly) enough, the placement of the 0 was different in different countries. At least in Sweden the first digit was 0, and not 1 as in this implementation. This was reflected in the emergency number which was 90000 at the time, which is easy to dial without mistakes even in a stressful situation.
Does that mean that different countries used incompatible dialing patterns? Since our 1 emitted one tone and 0 emitted 10, but presumably Sweden's 0 emitted one tone and 9 emitted 10.
Rotary dials didn't emit tones, but basically briefly disconnected the line. IN most countries it was 1 pulse for the digit 1, 2 pulses for 2 etc. up to 10, for zero
However Wikipedia notes:
> Exceptions to this are: Sweden (example dial), with one pulse for 0, two pulses for 1, and so on; and New Zealand with ten pulses for 0, nine pulses for 1, etc. Oslo, the capital city of Norway, used the New Zealand system, but the rest of the country did not.
If ever you were in a house which tried to prevent outgoing calls by using a lock on the dial, you could still make a call by tapping out the requisite digits on the hang-up buttons.
This is the type of phone I grew up with https://collection.motat.org.nz/objects/111551 It seems more logical to me. Those from other countries seem backwards. Pulse count = 10 - digit.
Is there a need for localization?