I have a scenario on wich requires sequential fork (up to 30 possible destinations) with different Call-ID for each leg. I am using topoh module enabled, but it always puts the same Call-ID. I think a possible solution would be to modify the callid prefix parameter of topoh module. Instead of storing a string, it could store the name of a variable that could then have its content changed within the script. So within the "branch_route" I could modify this variable by putting $tU ( To URI Username of the outgoing Invite). In this case the new Call-ID generated by topoh module would be a function of the "To URI Username" that is different for each leg. Is this proposal technically feasible or is there a different solution for this scenario? Additional information: kamailio Version - output of kamailio -v version: kamailio 5.7.1 (x86_64/linux) 4238e4 flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, MEM_JOIN_FREE, 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_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 4238e4 compiled on 13:26:58 Jun 28 2023 with gcc 8.5.0 Operating System: CentOS Linux 8 CPE OS Name: cpe:/o:centos:centos:8 Kernel: Linux 4.18.0-348.7.1.el8_5.x86_64 Architecture: x86-64 -- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/3630 You are receiving this because you are subscribed to this thread. Message ID: <kamailio/kamailio/issues/3630(a)github.com>