I've done it this way:
if (search("^Remote-Party-ID:.*<sip:.*?>.*?;privacy=full.*?")) {
xlog("L_NOTICE", "*** full privacy requested\n");
remove_hf("Remote-Party-ID");
append_hf("Remote-Party-ID:\
<sip:anonymous@127.0.0.1>;party=calling;screen=yes;privacy=full\n");
uac_replace_from("anonymous", "sip:anonymous@127.0.0.1");
avp_printf("contacthelp", "$hdr(contact)");
# xlog("L_NOTICE", "*** contact: $avp(contacthelp)\n");
avp_subst("contacthelp",
"/<sip:(.*)@(.*)>/<sip:\2>/");
# xlog("L_NOTICE", "*** contact substituted:
$avp(contacthelp)\n");
remove_hf("Contact");
avp_pushto("$Contact", "s:contacthelp");
}
More interesting than disabling the callees phone from displaying the
number is to remove it completely from the SIP messages, since the
black-hat callee could run tcpdump in front of his phone.
What do other ones think about my approach? In my setup it works fine,
as it seems.
Wolfgang
unplug wrote:
In the situation below, a call made from PSTN to
openser.
PSTN -----> openser ---------> UA1
How can I remove the caller such that UA1 can't show the caller number
in her display?
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