I have now built osmo-trx-lms and osmo-bts-trx from source on an i386 platform.

I have beacon, and two phones registered, the configuration from msc and up is the one

I had three weeks ago, which more or less worked, but with large stability problems.

I guess *this* report is the most interesting for you now....

I build from the "master", and target debian9 on i386.

I have not been able to make a call yet, possibly because I might have messed up some

library the MSC is dependent on, but I will work on that.

What is interesting is that bts 0 trx 0 is running trx-uhd with a B100, and seems quite stable.

Moreover, bts 1 trx 0 is running on the i386 and seems happy so far, after 30 minutes.

This is Limesdr mini.

I have just copied the bts0 to trx 0 section from my original config, duplicated it and changed

bts0 to bts1, and the ipa unit-id 1805 0, and of course the ip addresses.

I will comment the various lines in my configs, as I have understood them, and look forward to your

comments, or maybe a keyword list explaining what each parameter is used for.

! here is the first bts - trx section. The ip.access id must match the one in the BTS, where it is called ipa.

bts 0
type sysmobts
band DCS1800
cell_identity 0
location_area_code 1
base_station_id_code 63
ms max power 15
cell reselection hysteresis 4
rxlev access min 0
radio-link-timeout 32
channel allocator ascending
rach tx integer 9
rach max transmission 7
channel-descrption attach 1
channel-descrption bs-pa-mfrms 5
channel-descrption bs-ag-blks-res 1
early-classmark-sending forbidden
ip.access unit_id 1801 0
oml ip.access stream_id 255 line 0
codec-support fr
gprs mode none
trx 0
   rf_locked 0
   arfcn 871
   nominal power 20
   ! to use full TRX power, set max_power_red 0
   max_power_red 3
   rsl e1 tei 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
    hopping enabled 0
   timeslot 1
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 2
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 3
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 4
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 5
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 6
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 7
    phys_chan_config TCH/F
    hopping enabled 0

! this is BTS1. The

! osmo-bsc default configuration
! (assumes STP to run on 127.0.0.1 and uses default point codes)
!
e1_input
e1_line 0 driver ipa
network
network country code 1
mobile network code 1
encryption a5 0
neci 1
paging any use tch 0
handover 0
handover algorithm 1
handover1 window rxlev averaging 10
handover1 window rxqual averaging 1
handover1 window rxlev neighbor averaging 10
handover1 power budget interval 6
handover1 power budget hysteresis 3
handover1 maximum distance 9999
dyn_ts_allow_tch_f 0
periodic location update 30
bts 0
type sysmobts
band DCS1800
cell_identity 0
location_area_code 1
base_station_id_code 63
ms max power 15
cell reselection hysteresis 4
rxlev access min 0
radio-link-timeout 32
channel allocator ascending
rach tx integer 9
rach max transmission 7
channel-descrption attach 1
channel-descrption bs-pa-mfrms 5
channel-descrption bs-ag-blks-res 1
early-classmark-sending forbidden
ip.access unit_id 1801 0
oml ip.access stream_id 255 line 0
codec-support fr
gprs mode none
trx 0
   rf_locked 0
   arfcn 871
   nominal power 20
   ! to use full TRX power, set max_power_red 0
   max_power_red 3
   rsl e1 tei 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
    hopping enabled 0
   timeslot 1
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 2
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 3
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 4
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 5
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 6
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 7
    phys_chan_config TCH/F
    hopping enabled 0
bts 1
type sysmobts
band DCS1800
cell_identity 0
location_area_code 1
base_station_id_code 63
ms max power 15
cell reselection hysteresis 4
rxlev access min 0
radio-link-timeout 32
channel allocator ascending
rach tx integer 9
rach max transmission 7
channel-descrption attach 1
channel-descrption bs-pa-mfrms 5
channel-descrption bs-ag-blks-res 1
early-classmark-sending forbidden
ip.access unit_id 1805 0
oml ip.access stream_id 255 line 0
codec-support fr
gprs mode none
trx 0
   rf_locked 0
   arfcn 881
   nominal power 20
   ! to use full TRX power, set max_power_red 0
   max_power_red 3
   rsl e1 tei 0
   timeslot 0
    phys_chan_config CCCH+SDCCH4
    hopping enabled 0
   timeslot 1
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 2
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 3
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 4
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 5
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 6
    phys_chan_config TCH/F
    hopping enabled 0
   timeslot 7
    phys_chan_config TCH/F
    hopping enabled 0
msc 0
no bsc-welcome-text
no bsc-msc-lost-text
no bsc-grace-text
type normal
allow-emergency allow
amr-config 12_2k forbidden
amr-config 10_2k forbidden
amr-config 7_95k forbidden
amr-config 7_40k forbidden
amr-config 6_70k forbidden
amr-config 5_90k allowed
amr-config 5_15k forbidden
amr-config 4_75k forbidden
codec-list fr1 fr2 fr3 hr1 hr3
mgw remote-ip 127.0.0.1
mgw remote-port 2427
mgw local-port 2727
mgw endpoint-range 1 31
bsc
mid-call-timeout 0
no missing-msc-text

Does this look OK to you??

Regards,

Gullik