Hello, about the two errors: Jun 30 09:29:32 scscf kamailio[752]: DEBUG: ims_registrar_scscf [lookup.c:123]: lookup(): Looking for <sip:bob@10.244.0.57<mailto:sip%3Abob@10.244.0.57>> Jun 30 09:29:32 scscf kamailio[752]: DEBUG: ims_registrar_scscf [lookup.c:130]: lookup(): 'sip:bob@10.244.0.57<mailto:sip%3Abob@10.244.0.57>' Not found in usrloc This is generated because Kamailio user location module can not find the bob@... User in its DB/memory. Check if the user is registered at all, e.g. by looking into DB or dumping usrloc memory e.g. with kamcmd usrloc RPC commands. Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/forward.c:423]: check_self(): host (0:10.244.0.57:5060<http://10.244.0.57:5060>) != me Jun 30 08:40:22 scscf kamailio[557]: ERROR: <script>: Domain not served 403 This 403 is generated from the cfg script, presumable because the IP address is not recognized as “myself” from Kamailio. Have a look to the alias entries that Kamailio holds internally, e.g. by kamcmd alias RPC commands. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Pavithra Mohanraja Sent: Thursday, July 2, 2020 8:43 AM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: Re: [SR-Users] Error in SCSCF Hi, Any help on this please ... Thanks, Pavithra On Tue, Jun 30, 2020 at 3:08 PM Pavithra Mohanraja <pavimohan3004@gmail.com<mailto:pavimohan3004@gmail.com>> wrote: Hi, How could i store the contacts in usrloc ..I can also see something like this in my scscf logs .. Kindly anyone help me pls.. Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:374]: qm_malloc(): qm_malloc(0x7f8f6868e010, 27) called from ims_registrar_scscf: lookup.c: lookup(104) Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:419]: qm_malloc(): qm_malloc(0x7f8f6868e010, 32) returns address 0x7f8f6883e488 frag. 0x7f8f6883e450 (size=32) on 1 -th hit Jun 30 09:29:32 scscf kamailio[752]: DEBUG: ims_registrar_scscf [lookup.c:123]: lookup(): Looking for <sip:bob@10.244.0.57<mailto:sip%3Abob@10.244.0.57>> Jun 30 09:29:32 scscf kamailio[752]: DEBUG: ims_registrar_scscf [lookup.c:130]: lookup(): 'sip:bob@10.244.0.57<mailto:sip%3Abob@10.244.0.57>' Not found in usrloc Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:482]: qm_free(): qm_free(0x7f8f6868e010, 0x7f8f6883e488), called from ims_registrar_scscf: lookup.c: lookup(131) Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:526]: qm_free(): freeing frag. 0x7f8f6883e450 alloc'ed from ims_registrar_scscf: lookup.c: lookup(104) Jun 30 09:29:32 scscf kamailio[752]: DEBUG: tm [t_lookup.c:1328]: t_newtran(): msg (0x7f8f6882e5b8) id=3/752 global id=3/752 T start=(nil) Jun 30 09:29:32 scscf kamailio[752]: DEBUG: tm [t_lookup.c:497]: t_lookup_request(): start searching: hash=33435, isACK=0 Jun 30 09:29:32 scscf kamailio[752]: DEBUG: tm [t_lookup.c:455]: matching_3261(): RFC3261 transaction matching failed - via branch [z9hG4bKb928.d99e50532d1a08862dce461bcaa784d4.0] Jun 30 09:29:32 scscf kamailio[752]: DEBUG: tm [t_lookup.c:675]: t_lookup_request(): no transaction found Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:374]: qm_malloc(): qm_malloc(0x7f8f61a26000, 8320) called from tm: h_table.c: build_cell(330) Jun 30 09:29:32 scscf kamailio[752]: DEBUG: <core> [core/mem/q_malloc.c:419]: qm_malloc(): qm_malloc(0x7f8f61a26000, 8320) returns address 0x7f8f61d81588 frag. 0x7f8f61d81550 (size=11696) on 1 -th hit Jun 30 09:29:32 scscf kamailio[752]: DEBUG: tm [t_hooks.c:336]: run_reqin_callbacks_internal(): trans=0x7f8f61d81588, callback type 1, id 0 entered Thanks, Pavithra On Tue, Jun 30, 2020 at 2:38 PM Pavithra Mohanraja <pavimohan3004@gmail.com<mailto:pavimohan3004@gmail.com>> wrote: Hi , I am facing below error in s-cscf when i send a BYE from alice to bob in kamailio IMS. The problem is in only call termination .Kindly help . Error log in scscf : Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/mem/q_malloc.c:526]: qm_free(): freeing frag. 0x7f4746f89148 alloc'ed from core: core/rvalue.c: rval_new_empty(224) Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/socket_info.c:630]: grep_sock_info(): checking if host==us: 11==11 && [10.244.0.57] == [10.244.0.54] Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/socket_info.c:637]: grep_sock_info(): checking if port 4080 (advertise 0) matches port 5060 Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:10.244.0.57:5060<http://10.244.0.57:5060>) vs. (0:sip.example.com:0<http://sip.example.com:0>) Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:10.244.0.57:5060<http://10.244.0.57:5060>) vs. (0:sip.example.com:5060<http://sip.example.com:5060>) Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/name_alias.h:62]: grep_aliases(): matching (0:10.244.0.57:5060<http://10.244.0.57:5060>) vs. (0:scscf.sip.example.com:4080<http://scscf.sip.example.com:4080>) Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/forward.c:423]: check_self(): host (0:10.244.0.57:5060<http://10.244.0.57:5060>) != me Jun 30 08:40:22 scscf kamailio[557]: ERROR: <script>: sip:bob at sip.example.com<http://sip.example.com> Jun 30 08:40:22 scscf kamailio[557]: ERROR: <script>: Domain not served 403 Jun 30 08:40:22 scscf kamailio[557]: ERROR: <script>: BYE (sip:alice@sip.example.com<mailto:sip%3Aalice@sip.example.com> (10.244.0.52:4060<http://10.244.0.52:4060>) to sip:bob@sip.example.com<mailto:sip%3Abob@sip.example.com>, -ARSjM.TTZgxhzwDjKRN0DtENWD4bKl0) Jun 30 08:40:22 scscf kamailio[557]: DEBUG: <core> [core/mem/q_malloc.c:374]: qm_malloc(): qm_malloc(0x7f4746dd7010, 30) called from core: core/ut.c: as_asciiz(161) I am not getting what it checks .. 10.244.0.57 -> UE bob 10.244.0.52 -> pcscf 10.244.0.53 -> icscf 10.244.0.54 -> scscf 10.244.0.56 -> UE alice Kindly help Thanks, Pavithra