Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-17)

Mobile Station side GSM implementation; mirrored from https://gitea.osmocom.org/phone-side/osmocom-bb

Osmocom core libraries; mirrored from https://gitea.osmocom.org/osmocom/libosmocore

Osmocom GSM Base Transceiver Station (BTS); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-bts

A 3GPP R16 compliant open source 5G core UPF (User Plane Function).

Historical archive of ancient, unsupported old OpenBSC + OsmoNITB; Use OsmoBSC and OsmoMSC now! Mirrored from https://gitea.osmocom.org/cellular-infrastructure/openbsc

Onomondo UICC - a software implementation of SIM/UICC/USIM functionalities

NGIC-RTC is Control User Plane Separated (CUPS) architecture 3GPP TS23501 based implementation of EPC Service and Packet Gateway functions (SGW, PGW)

Osmocom implementation of 3GPP Mobile Swtiching Centre (MSC); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

GSM Base Station Controller; mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-bsc

Osmocom SCCP + SIGTRAN libraries as well as OsmoSTP; mirrored from https://gitea.osmocom.org/osmocom/libosmo-sccp

Osmocom Gateway GPRS Support Node; Mirror of https://gitea.osmocom.org/cellular-infrastructure/osmo-ggsn

Osmocom implementation of the 3GPP Serving GPRS Support Node (SGSN); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-sgsn

Osmocom Cell Broadcast Centre (CBC); mirror of https://git.osmocom.org/osmo-cbc

Osmocom implementation of 3GPP Home Location Registr (HLR); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-hlr

Osmocom GPRS Packet Control Unit (PCU); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-pcu

Osmocom Abis interface library; mirrored from https://gitea.osmocom.org/osmocom/libosmo-abis

HTTP2 Simple Application Framework for 3GPP R15 5G SBI HTTP/2 HTTP/1.1 NF Simulator in C using nghttp2

Obsolete old open source GSSN; use OsmoGGSN instead; mirrored from https://gitea.osmocom.org/cellular-infrastructure/openggsn

Osmocom SIP connector; mirror of https://gitea.osmocom.org/cellular-infrastructure/osmo-sip-connector