Dear members, It seems that the latest Osmo-nitb (0.13.0.48-9e22) broke compatibility with Nokia InSite. I am using a GSM1800 unit with an E1 dahdi card, and with the following config it was working fine with a previous version (osmo-nitb v.0.13.0.33-e152a4): openbsc.cfg: ! OpenBSC configuration saved from vty ! ! password foo ! line vty no login ! e1_input e1_line 0 driver dahdi network network country code 1 mobile network code 1 short name OpenBSC long name OpenBSC mm info 1 timer t3101 10 timer t3113 60 bts 0 type nokia_site band GSM1800 cell_identity 1 location_area_code 1 base_station_id_code 63 training_sequence_code 7 ms max power 40 periodic location update 10 oml e1 line 0 timeslot 5 sub-slot full oml e1 tei 1 trx 0 arfcn 885 nominal power 22 max_power_red 0 rsl e1 line 0 timeslot 4 sub-slot full rsl e1 tei 1 timeslot 0 phys_chan_config CCCH+SDCCH4 e1 line 0 timeslot 2 sub-slot 0 timeslot 1 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 1 timeslot 2 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 2 timeslot 3 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 3 timeslot 4 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 0 timeslot 5 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 1 timeslot 6 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 2 timeslot 7 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 3 /etc/dahdi/system.conf span=1,0,0,ccs,hdb3,crc4 bchan=2-31 dchan=1 Error message with the most recent verion: root@openbsc:~# osmo-nitb -c /root/1800_nokia.cfg <0018> input/lapd.c:212 LAPD Allocating SAP for SAPI=62 / TEI=1 <0018> input/lapd.c:223 k=1 N200=3 N201=260 T200=1.0 T203=10.0 <0018> input/lapd.c:485 LAPD DL-ESTABLISH request TEI=1 SAPI=62 <0018> input/lapd.c:212 LAPD Allocating SAP for SAPI=62 / TEI=1 <0018> input/lapd.c:223 k=1 N200=3 N201=260 T200=1.0 T203=10.0 <0018> input/lapd.c:485 LAPD DL-ESTABLISH request TEI=1 SAPI=62 DB: Database initialized. DB: Database prepared. <001d> sms_queue.c:220 Attempting to send 20 SMS <0018> input/lapd.c:624 LAPD DL-ESTABLISH confirm TEI=1 SAPI=62 <0005> bts_nokia_site.c:58 bootstrapping OML for BTS 0 <0005> bts_nokia_site.c:1679 ABIS_OM_MDISC_FOM <0005> bts_nokia_site.c:1507 (0x81) NOKIA_BTS_ACK <0005> bts_nokia_site.c:1539 ACK = 1 <0018> input/lapd.c:513 LAPD DL-RELEASE request TEI=1 SAPI=62 <0018> input/lapd.c:628 LAPD DL-RELEASE confirm TEI=1 SAPI=62 <0018> input/lapd.c:513 LAPD DL-RELEASE request TEI=1 SAPI=62 <0018> input/lapd.c:628 LAPD DL-RELEASE confirm TEI=1 SAPI=62 Segmentation fault (core dumped) root@openbsc:~# I have to admit that even with the previous versions I had issues, like a lot of radio link failures, unstable voice calls (lasting only 1-2 minutes), but now it wont start at all. Thanks in advance! Csaba