Re: Structure of tel: URI

At 5:35 pm -0400 6/8/02, Michael Hammer wrote:
>Going from memory, one time when I looked into this, there was a 
>difference between global and local numbers in their use of 
>over-decadic digits.  Local allowed them, global did not.  I would 
>have to chase down the reference.
>
>Is this saying that over-decadic can be used in global or that local 
>digits can now not be over-decadic.
>
>Mike
>
Hi Mike, Folks,
   "Over-decadic" was used for local numbers only to express RNs that 
were (?are?) used within some Netz.
e.g. Cxxx and Fxxx to indicate "this is a network-internal routing number".
It's mentioned in the BNF (as HEXDIG) and in ss 5.1.2 (line 264 onwards).

The suggestion was that, as routing numbers are "network-internal", 
there's no need for this to be
allowed in global numbers - an RN is not (necessarily) valid outside 
its context. Hence 5.1.2 says
that it's unspecified but not prohibited for local numbers only.

James Yu's draft on RN and CIC may make use of HEXDIG, so please 
let's not prohibit it.

all the best,
   Lawrence
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