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In case of an IMSI Detach, we don't have a conn_fsm, yet we still need to send release messages. Hence directly release the conn in msc_subscr_conn_close() when there is no conn_fsm present. Move the conn release actions from the conn_fsm cleanup function to new function msc_subscr_conn_release_all(). From the FSM cleanup, call msc_subscr_conn_close(), and invoke msc_subscr_conn_release_all() from there. Document msc_subscr_conn_close() behavior. Change-Id: Ied6981099605ad803f8ffed38f23ed8203a97727
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>