Hello,
I have a subnet with a Kamailio and some phones.
Unfortunately these phones are the only ones in the network
that are unaware of the prefixes for the sip usernames. These
prefixes should be added by Kamailio. For INVITEs its no
problem as $ru/$rU are writeable.
Problem: If I send a REFER message to an other phone I want
to add a prefix to the username in the Refer-To header.
However, the $rt pseudo variable is read only.
Question: How can Kamailio modify the username of the URI
in the Refer-To header?
Best regards and thanks in advance,
Stefan