@henningw investigating further, between our own TRUNKAUTH logs entries, while uac_auth() is called, we also see these errors, i wonder if they are related and if you could point me in the right direction to solve these criticals:
2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socketShow context | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:1482]: process_lumps(): FIXME: null bind_address | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) DEBUG: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/mem/q_malloc.c:419]: qm_malloc(): qm_malloc(0x7f35c476e010, 2240) returns address 0x7f35c48ee960 frag. 0x7f35c48ee928 (size=3576) on 1 -th hit | | 2022-11-03 13:42:58 | 28(53) DEBUG: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/mem/q_malloc.c:374]: qm_malloc(): qm_malloc(0x7f35c476e010, 2238) called from core: core/msg_translator.c: build_req_buf_from_sip_req(2235) | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:896]: lumps_len(): FIXME: null send_sock | | 2022-11-03 13:42:58 | 28(53) CRITICAL: {Thu Nov 3 12:42:58 2022 1 17733 INVITE 9326c0d2-2653-4041-8977-eecf1827a79c} <core> [core/msg_translator.c:494]: lump_check_opt(): null send socket