The uac module lacks the uac_reg_unregister(attr, val) method, Send REGISTER with expires 0 for matching record in real time, instead of through RPC command。uac_reg_disable(attr, val) ：SIP processing is done on the next timer routine. -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3702 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3702(a)github.com>