To be anonymous with a tel URI, just lie and use somebody else's number.
Or, you could do something like:
tel:0;phone-context=anonymous.invalid
But AFAIK there is no *standard* way of doing it.
Thanks,
Paul
Iñaki Baz Castillo wrote:
> El Miércoles, 13 de Enero de 2010, Paul Kyzivat escribió:
>> This says that if the user field contains an e164 telephone-subscriber
>> than user=phone SHOULD be present. It doesn't state the converse: that
>> if the user part *doesn't* contain a telephone-subscriber then there
>> should not be a user=phone.
>>
>> So I don't think this can be viewed as a syntactic error. It needs to be
>> considered a semantic distinction and only considered by something
>> responsible for the domain that has knowledge of the semantics of user
>> names in that domain.
>
> BTW, how to indicate anonymous caller in a TEL URI? perhaps it's not possible
> (due to grammar restrictions) so a SIP URI must be used for this purpose?
>
>
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