Hello community,
We made some modifications to Kamailio PCSCF sample cfg file, so when PCSCF
receiving an tcp SUBSCRIBE message it add ;transport=tcp to the end of Contact
URI. Below is what we added the route block right after if
(is_method("INVITE|SUBSCRIBE")) logic
if (is_method("SUBSCRIBE") && proto=='tcp') {
$var(original_contact_header) = $ct;
$var(new_contact_header) =
$(var(original_contact_header){re.subst,/(.*:.*)(>);/\1;transport=tcp>/g});
remove_hf("Contact");
append_hf("Contact: $var(new_contact_header)\r\n");
msg_apply_changes();
}
We did see the ;transport=tcp been added but we also seeing a bad line
;alias=[...] is added before the To: line
[cid:[email protected]]
Does anyone know what function might cause this ;alias been added before To:
line?
BR,
Weiqi
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