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@@ -0,0 +1,39 @@ +About OpenBSC +============= + +OpenBSC started as a minimalistic all-in-one implementation of the GSM Network, +with particular emphasis on the functionality typically provided by the BSC, +MSC, HLR, VLR and SMSC. Today it is a growing suite of libraries and programs, +implementing protocol stacks and functional elements, including + + * OsmoBSC - a pure GSM BSC, speaking Abis/IP to the BTS and A/IP to the MSC + * OsmoBSC-MGCP - MGCP helper to the OsmoBSC software + * OsmoNITB - a BSC+MSC+VLR+HLR+SMSC "Network in the box". + * OsmoMSC - a voice CN with A/IP and IuCS/IP towards the BSC and/or HNB-GW + * OsmoSGSN - a GPRS SGSN with Gb/IP and IuPS/IP towards the PCU and/or HNB-GW + * Osmo-GbProxy - a Proxy to aggregate many Gb links as one Gb link to the SGSN + * OsmoBSCNAT - a gateway aggregating many A links as one A link to the MSC + * OsmoGTPHUB - a hub aggregating many GTP links (between SGSN and GGSN) + * ipaccess-utils - some tools to discover + configure ip.access nanoBTS + * bs11_config - a tool to configure the Siemens BS-11 microBTS + +Various interfaces towards the BTS are supported, among which are: + + * Classic A-bis over E1 using a mISDN based E1 interface. In other + words, you can connect existing GSM Base Transceiver Station (BTS) + through E1 to OpenBSC. So far, we have made it work with the Siemens BS-11, + various Ericsson RBS2xxx BTS models and the Nokia MetroSite. + + * A-bis over IP as used by the ip.access nanoBTS product family as well as + the Open Source OsmoBTS software (by the same authors as OpenBSC). OsmoBTS + in turn supports various transceiver hardware, including the sysmoBTS + product family, as well as SDR transceivers supported by OsmoTRX, such as + the UmTRX or USRP boardss. + + * IuCS and IuPS over IP towards an HNB-GW (see osmo-iuh) for UMTS (3G) + voice and data links. + +Find OpenBSC online at +http://openbsc.osmocom.org/ + + Harald Welte <laforge@gnumonks.org> |