Francois Audet wrote:
>  
>> Advertising a SIP URI exclusively would be as silly as 
>> advertising an email URI exclusively.  You always want a way 
>> to accept incoming PSTN calls (because it is the lowest 
>> common denominator for interactive communications), and a 
>> legitimate business would also want a physical address and a 
>> postal address to receive physical packages and deliveries.
> 
> Agreed.
> 
> Cutting to the chase, I'd put the following on my business card:
> 
> tel: +1-408-495-2456
> sip:[EMAIL PROTECTED]
> mailto:[EMAIL PROTECTED]

Interestingly, that doesn't indicate that you are reachable via sip 
using the numeric address.

A sip caller given the tel might figure that out, but might not. If you 
had user enum, and the caller used it, then all is well. But if not, and 
if the caller just blasts the tel uri to his SP, it may figure it out, 
and may not.

You are going to ask why the caller would use the tel form in that case. 
One reason would be because the UI of the device only supports numeric 
input.

        Paul
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