>> How can you have people keeping their existing numbers whilst adding
>> more digits? If you have some people with 6 digit numbers and others
>> with 8 digit, how does the system know whether to connect or not after
>> the 6th digit?
>
> The same way we have here "short" number: dedicates a heading digit for
> them.
>
> As long as all the 6 digits numbers do not cover the whole tree, and in
> particular, a first digit is still unused, you can make such scheme:

Of course if you've designed the system that way from the start, but if 
you're in a city that's about to run out of fixed-length numbers, there 
won't be any large chunks of the tree left to use as a header for long 
numbers.

Post a reply to this message