! ! OsmoMSC (1.6.1.9-8569) configuration saved from vty !! ! log file /tmp/osmo-msc.log logging filter all 1 logging color 1 logging print category-hex 0 logging print category 1 logging timestamp 1 logging print level 1 logging print file basename logging level set-all debug ! stats interval 5 ! line vty no login ! cs7 instance 0 point-code 0.23.1 asp asp-clnt-OsmoMSC-A 2905 0 m3ua remote-ip 127.0.0.1 sctp-role client ! <-- This is the culprit! as as-clnt-OsmoMSC-A m3ua asp asp-clnt-OsmoMSC-A routing-key 1 0.23.1 network network country code 901 mobile network code 70 short name Osmocom long name Osmocom encryption a5 0 encryption uea 1 2 authentication optional rrlp mode none mm info 1 msc mncc guard-timeout 180 ncss guard-timeout 30 assign-tmsi cs7-instance-a 0 !cs7-instance-iu 0 auth-tuple-max-reuse-count 3 auth-tuple-reuse-on-error 1 mgw local-ip 127.0.0.1 mgw local-port 2427 mgw remote-ip 127.0.0.1 mgw remote-port 2428 mncc-int default-codec tch-f fr default-codec tch-h hr smpp local-tcp-port 2775 policy closed no smpp-first hlr remote-ip 127.0.0.1 remote-port 4222 sgs local-port 29118 local-ip 0.0.0.0 vlr-name vlr.example.net