15 okt 2009 kl. 18.44 skrev Paul Kyzivat:
Avshalom Houri wrote:
I have found discussion thread on how to secure e.g. TEL URI over
SIP from 2007.
transport=tls is deprecated and it does not mean end to end anyway.
We still do not have "tels" URI.
Was this discussion concluded and if how it was concluded?
AFAIK there was never any resolution of this - nobody knows how to
do it.
I think the most fundamental problem is that there is no good answer
to who is permitted and able to authenticate the use of a particular
TEL URI.
That's a very interesting issue. The Tel: uri gets routed somehow, by
default route in a proxy or outbound proxy setting in a UA.
This really applies to all NON-sip/sips uri's in SIP.
Food for thought. And something that causes damage for the use of Tel:
URI's.
/O
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