Hello all,

The HSS is responding with 604 errors when the I-CSCF checks the public identity of the caller.  PCAP attached.

It looks like our I-CSCF is modifying the sip uri’s to tel uri’s (e.164-like), referenced attached PCAP:

in_uri=sip:alice@ims522.irisims.org

out_uri=sip:+alice@ims522.irisims.org

syslog output:

Jun  6 16:50:06 imskamailio /usr/local/sbin/kamailio[14066]: ERROR: <script>: $ru => sip:+alice@irisims.org

Looking at the default (out of the box) Kamailio.cfg for I-CSCF the following script snipet is where the modification to our sip URI is happening:

# -------------------------  request routing logic -------------------

# main routing logic

route{

#!ifdef WITH_DEBUG

                xlog("I-CSCF >>>>>>>>>>>>>>>>>>>> $rm $ru ($fu => $tu ($si:$sp) to $tu, $ci)\n");

#!endif

if !($rU =~ "\+.*") {

                                prefix("+");

                }

Is there a I-CSCF setting directive we missed?

Or should we simply comment the above?

Any advice is appreciated.

Thanks,

Martin Woscek