Hi, the maxfwd will not help me prevent the loop on the first round, it would only stop it a little sooner the X times. no? the dlg_var is interesting, but i didn't understand how to use it exactly. how do i match two dialogs? is the spiral detection on dialog module helps? thanks, Uri Bye Sven Am 20.02.2012 13:20, schrieb Uri Shacked: *>* Hi, **>* The service i built in kamailio is simple - a caller dials an Access *>* number, my gateway send it to kamailio. **>* kamailio finds the shadow number for this Access number and send an *>* invite to the same gateway with the shadow number as destination *>* (state full proxy). **>* In kamailio i change only the RURI and the “To” and “From” stays *>* untouched. **>* Now, when a client performs “diversion”, I can see that I can find *>* myself in an unwanted long loop…. **>* Example : **>* A calls B **>* B diverted the call unconditionally to C. **>* C is an Access Number that its shadow number is D. **>* D diverted the call to B……. **>* Well, that is a bad loop to have! **>* It can be longer or shorter, but the idea I understood (I think). **>* I thought about diversion check, counters, dialog “To” and “From” *>* check, etc…. **>* Anyone here dealt with it? **>* What will be the best way to check and see if the situation accrues? **>* Thanks, **>* Uri **