Re: [Sipping] I-D Action:draft-york-sipping-p-charge-info-10.txt

[Tom Taylor <tom111.taylor@xxxxxxxx>]

Hi.

On 26/10/2010 9:10 PM, Dan York wrote:
...
> DY>  How do we specify digits in ABNF?  For NPI we want to restrict
> it to 3 digit numbers, but I was not clear on how to do that in ABNF
> and so I wound up doing "gen-value".
> >

[PTT] That's easy: NPI = 3DIGIT

See section 3.7 of RFC 5234.

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