Multiple registration using single UA

[E D]

If I wanted to register two distinct numbers through a single UA Device
say 34111111 and 34111112 through one/single UA Device.
Should I expect the "Call-ID" to be Unique or Identical?
RFC3261 seem to imply that the only the "SIP Tag" needs to be unique for
the SIP Server or Registrar to
understand that both Numbers are being registered from one device only. How
could the SIP Server or
Registrar verify that these two numbers are in fact originating from the
same Device?
Thanks in advance

[Brett Tate]

Post by E D
If I wanted to register two distinct numbers through
a single UA Device say 34111111 and 34111112 through
one/single UA Device. Should I expect the "Call-ID"
to be Unique or Identical?

Unique. I assume that you are not attempting to use rfc6140 or rfc5626.

Post by E D
How could the SIP Server or Registrar verify that these
two numbers are in fact originating from the same Device?

As far as I know, that is outside of the scope of rfc3261 unless you want to make assumptions/deductions concerning some header values (such as Contact or User-Agent). RFC 6140 may be of interest.

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[Paul Kyzivat]

Post by E D
If I wanted to register two distinct numbers through a single UA Device
say 34111111 and 34111112 through one/single UA Device.
Should I expect the "Call-ID" to be Unique or Identical?
RFC3261 seem to imply that the only the "SIP Tag" needs to be unique
for the SIP Server or Registrar to
understand that both Numbers are being registered from one device only.
How could the SIP Server or
Registrar verify that these two numbers are in fact originating from the
same Device?

Why would a registrar want/need to determine this?

Thanks,
Paul

Post by E D
Thanks in advance
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_______________________________________________
Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is essentially closed and only used for finishing old business.
Use sip-***@cs.columbia.edu for questions on how to develop a SIP implementation.
Use ***@ietf.org for new developments on the application of sip.
Use ***@ietf.org for issues related to maintenance of the core SIP specifications.