[SIPForum-discussion] Caller identity privacy

[Felea, Adrian]

I am having issue with 
When dialing *67 from a PSTN phone (to hide the identity) with a name
associated, this gets translated to an "ANONYMOUS" name within the
"From" sip header. In this case the identity of the caller is not
presented to the called party.
When dialing the same from a PSTN phone with no name associated, the
"ANONYMOUS" name is not part of the "From" sip header anymore and the
identity of the caller is presented to the called party.
In the RFC 3261 it states:
   The From header field allows for a display name.  A UAC SHOULD use
   the display name "Anonymous", along with a syntactically correct, but
   otherwise meaningless URI (like sip:thisis at anonymous.invalid), if the
   identity of the client is to remain hidden.
 
If I understand this correctly, does this mean that when calling from a
PSTN phone with no name associated (and dialing *67 for privacy), the
identity of the caller is still presented to the called party because we
do not have an "ANONYMOUS" name within the "From" sip header?
 
Thanks,
Adrian
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