From 644be61c4a3a52f754cc5650e44fa77cc0f6e962 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Wed, 6 Jan 2021 13:13:28 +0100 Subject: README update. Explain more what it is than just the history Change-Id: I7368a8a0927fa301dfbbe550b8090e783ab7be2e --- README | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) (limited to 'README') diff --git a/README b/README index a45ef951e..0f1b3cf24 100644 --- a/README +++ b/README @@ -1,15 +1,26 @@ About OsmoMSC ============= -OsmoMSC originated from the OpenBSC project, which started as a minimalistic -all-in-one implementation of the GSM Network. In 2017, OpenBSC had reached -maturity and diversity (including M3UA SIGTRAN and 3G support in the form of -IuCS and IuPS interfaces) that naturally lead to a separation of the all-in-one -approach to fully independent separate programs as in typical GSM networks. +OsmoMSC is an implementation of the 3GPP MSC (Mobile Switching Centre) +network element. It implements the following core functionality within +the 2G (GSM) and 3G (UMTS) networks: -OsmoMSC was one of the parts split off from the old openbsc.git. Before, it was -the libmsc part of the old OsmoNITB. Since a true A interface and IuCS for 3G -support is available, OsmoMSC exists only as a separate standalone entity. +* mobility management +* call control (either via built-in MNCC handler or external osmo-sip-connector) +* USSD (exposed via GSUP) +* SMS (either via built-in SMSC or external via GSUP) + +Historically, OsmoMSC originated from the OpenBSC project, which started +as a minimalistic all-in-one implementation of the GSM Network. In 2017, +OpenBSC had reached maturity and diversity (including M3UA SIGTRAN and +3G support in the form of IuCS and IuPS interfaces) that naturally lead +to a separation of the all-in-one approach to fully independent separate +programs as in typical GSM networks. + +OsmoMSC was one of the parts split off from the old openbsc.git. Before, +it was the libmsc part of the old OsmoNITB. Since a true A interface and +IuCS for 3G support is available, OsmoMSC exists only as a separate +standalone entity. OsmoMSC exposes - GSUP towards OsmoHLR (or a MAP proxy); -- cgit v1.2.3