Hello Maryam, Kamailio supports AVPs and also an extended version called XAVP. About your question - I quickly looked into ETSI TS 129 329 and TS 129 229 but they did not define how this actually works.. Can you elaborate what you actually are looking for? Cheers, Henning Am 05.08.19 um 12:41 schrieb Maryam Baghdadi: hello, I need to know wildcarde_IMPU feature support in kamailio or not? I use kamailio as scscf and need to have support of wildcarded_impu in my scscf. is there any implementation of AVP_Wildcarded_IMPU in kamailio ? thanks _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://skalatan.de/services