Discussion:
Securing messages with TEL URI over SIP
Avshalom Houri
2009-10-15 15:54:11 UTC
Permalink
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?

--Avshalom
aayush bhatnagar
2009-10-15 16:42:02 UTC
Permalink
why not use a sips uri that contains a telephone number instead (in the
sense of section 19.1.6, RFC 3261) ? Eg: sips:+355-554-1234567;postd=
Post by Avshalom Houri
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?
--Avshalom
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aayush
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Paul Kyzivat
2009-10-15 16:44:15 UTC
Permalink
Post by Avshalom Houri
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.

Thanks,
Paul
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Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-***@cs.columbia.edu for questions on current sip
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Olle E. Johansson
2009-10-21 13:25:22 UTC
Permalink
Post by Paul Kyzivat
Post by Avshalom Houri
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
_______________________________________________
Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-***@cs.columbia.edu for questions on current sip
Use ***@ietf.org for new developments on the application of sip
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