I config opensips usrloc db_mode to 2, everything work fine register saved in location table. I also configured NAT pinger interval for keep-alive pinhole open… But when client expired it'll be delete from location table and can't make a call. How can i keep it forever until the nat pinger cant reach the client (not response 200 when OPTIONS message send to client) ?
if the UAC does not re-register by itself, the only way to do it is via the MI interface, via ul_add command:
Could i use this command on status 200 when the client response the ping OPTION message.