2 Replies Latest reply: Jul 28, 2009 5:56 PM by user753546 RSS

    INVITE with display-name=""  in Contact header->400 Bad request from occas

    708303
      Hi,


      When a UAC sends an INVITE to OCCAS
      with the Contact header in the form :
      Contact: "" <sip:user@domain>
      OCCAS rejects the message with 400 Bad request.

      The problem comes from display-name = ""
      (proven easily with sipp)

      In the 400 response : X-Bad-Request: Illegal header "Contact"

      It seems that the string "" as display name should be allowed according to rfc 3261:

      display-name = *(token LWS)/ quoted-string
      quoted-string = SWS DQUOTE *(qdtext / quoted-pair ) DQUOTE
      qdtext = LWS / %x21 / %x23-5B / %x5D-7E/ UTF8-NONASCII
      quoted-pair = "\" (%x00-09 / %x0B-0C / %x0E-7F)

      Has anyone encountered the problem?


      regards

      Christophe