[uf-discuss] uF's on stand-alone phone numbers.

André Luís andr3.pt at gmail.com
Thu Aug 23 09:14:43 PDT 2007

I know it's not a microformat/nanoformat per se, and it's a technique
for mobile web, maybe it's interesting for the discussion at hand:

[Turn telephone numbers into links that start a phone call]

Practice: There are two ways to implement one-click phone calls:
 <a href="wtai://wp/mc;+39393939777778">+39 393939777778</a>
 <a href="tel:+39393939777778">+39 393939777778</a>

While modern devices support both syntaxes, neither is guaranteed to
work on all phones. In addition, some older device do not support
one-click calls at all.
Authors who rely on LCD can choose one or the other. Adaptation may be
used to cover all devices and just present the telephone number to
devices that do not support one-click calls.
from: http://www.passani.it/gap/#STILL_A_PHONE

What are the downsides you foresee in using this approach to markup a
telephone number for (desktop) websites/apps?

Thank you,
André Luís

On 8/23/07, Tantek Çelik <tantek at cs.stanford.edu> wrote:
> On 8/23/07 7:59 AM, "Alexander Mayrhofer" <axelm at nona.net> wrote:
> >
> > Hi,
> >
> > I'm looking into ways to mark up "standalone" phone numbers in a uF-friendly
> > way. I don't have a name for a full hCard, only the phone number (and,
> > potentially an email/web address).
> Hi Alexander,
> Could you provide a URL to an example on the Web that you are looking to
> mark up?  Often times the surrounding context will yield critical clues for
> the markup solution.
> > Should i:
> >
> > - use a "fake" name for a full hCard (like "<number> addressbook entry") for
> > a very minimal hCard
> That seems like semantic noise, which should probably be avoided.
> > - only mark up the phone number itself, and violate the hCard specs?
> It sounds like you are proposing reusing the "tel" property outside of an
> hCard.
> That wouldn't "violate the hCard spec" per se, in that you wouldn't have an
> invalid hCard, you wouldn't have an hCard at all.
> It seems reasonable to experiment with using properties of hCard on their
> own like that to see how it works with actual examples, especially given
> that past such experiments have yielded additional microformats (geo [1],
> adr [2]).
> Doing so would be good use of POSH[3].
> Thanks,
> Tantek
> [1] http://microformats.org/wiki/geo
> [2] http://microformats.org/wiki/adr
> [3] http://microformats.org/wiki/posh
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