[SIPForum-discussion] Which sip methods contains Call-Info header?

[hatke oz]

Hi all,		Can anyone please tell me and give a reference, in what practical scenarios Call-Info header is used and SIP INFO method can contain "Call-Info" header?   As it is specified in RFC 3261 section 20.9 Call-Info, it can be used to provide a picture of the user. In section 20.1, table 2 indicates that "Call-Info" is optional for INVITE, OPTION and REGISTER method. Thanks,
Hatke   
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