[VOIPSEC] Use of public and private URI

[Hadriel Kaplan]

Without getting into the details of changes that happened between R5 and R6,
and the temporary ones used if you're using a USIM vs. an ISIM, essentially
the public uri is your AoR, and the private is only used for authentication
info.  So your public URI would be the one people use to call you (and thus
used for call routing), and the private is one you don't even really know
exists that the service provider uses to identify you and would be tied to
the ISIM chip (or derived from USIM info).  

In general a user could have many public IDs/URIs but usually 1 private ID,
like your single physical GSM phone can be reached via multiple phone
numbers or URIs - but now you can also have the public IDs tied to multiple
private ones, so your well-known number/URI can reach you at multiple
places. (it's not really tied to the phone as much as your UICC/SIM card or
other hardware with the shared secret key and other info)

-hadriel


> -----Original Message-----
> From: Voipsec-bounces at voipsa.org [mailto:Voipsec-bounces at voipsa.org] On
> Behalf Of Santosh V Prasad
> Sent: Wednesday, November 16, 2005 12:13 AM
> To: voipsec at voipsa.org
> Subject: [VOIPSEC] Use of public and private URI
> 
> Hi,
> 
>     In 3GPP IMS stack what is the use of public and private URI's during
> registration.
> 
> 
> Regards,
> Santosh
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