[SR-Users] Unable to CDRs on "Busy Here 486" from remote side and save start and end time on successful call in table

Hello, i want to save the status each call into the database. but failed to 1. record CDRs for "Busy Here 486/ service unavailable 503 " from remote side in database. 2. on successful call unable to record total time of call in database. Version of Kamailio Is *version: kamailio 4.4.7 (x86_64/linux) 35d8abflags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RESADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MBpoll method support: poll, epoll_lt, epoll_et, sigio_rt, select.id: 35d8ab* *Also Attached Config File* *Thanks*