[OpenSER-Users] SIP forking - address a certain client on Openser 1.2

Hi, we would like to anable the client to register from 2 IP addresses but the latest register shall be used for the invite message. But the problem is - how to tell OpenSER? As I have read in the documnetation there are actually 2 Parameters which handles this processing modparam("registrar", "max_contacts", 2) set the number of parallel registers to 2 (forking) modparam("registrar", "append_branches", 1) delivers to all registered branches modparam("registrar", "append_branches", 0) delivers only to 1 registered branch But - which one?? In the doumentation there is explained that one can set the q-value. As the SIP client doesn't know, how many registers already exist he can not set a dedicated q-value. If I manually change the q-values in the database (table location) there is no change in the behaviour. I changed q value from -2 -1 to 0 and 1 and 2. no change. I could not determine, which rule applies, so I played with the other parameters: § id § q (as above) § expires § last_modified No change. I can not see, that if I set one of the values to a higher or a lower value as the second register, it affects the behaviour of Openser to call a certain SIP client. Am I think wrong or what can I do to?