Osmocom New Splits stacks (osmo-bsc, osmo-msc, osmo-mgw) for voice is SOLVED and stable with LimeSDR-USB!
Voice is working actually since back then, my fault is using only Motorolla C117/118 phone for test call all the time before. (dont use those phone)
Now I just test using newer phone both Caller and Callee for voice is work perfectly!
I tested both osmo-trx-lms and osmo-trx legacy.
using osmo-trx legacy 0.20 also have better performance using the firmware/gateware version I mention here : firmware/gateware version: LimeSDR-USB_HW_1.3_r3.0.img and LimeSDR-USB_HW_1.4_r2.9.rbf from LimeSuite 17.09.0.
The Legacy osmo-nitb also work great!
Noted: using latest osmo-trx-lms great (with downgrading the firmware I mention above and never get error)
I got the split osmocom working a few weeks back as well. Getting the network up wasn’t too bad but, finding the right config for voice calls was pretty frustrating. I believe it was the IP/Port settings of the mgw that was crucial to successfully routing voice traffic to the bsc & msc.
I’ll also offer my guidance and config files to anyone in need. Currently, I have a working setup on my Ubuntu 16.04 VM that I’ve tested with both the full size LimeSDR and mini.
I’m really digging the osmo-trx-lms transceiver.
However, I’m going to experiment with the legacy trx with 17.09 firmware too.
In my initial test, I found that the software "libtool " is missing from the dependency. I can’t run autoreconf -fi without it, and autoreconf doesn’t exist in the dependency as well.
this is just to let others know that this is missing from the guide
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Also (./configure) command didn’t work, so I checked a previous guide and found out that the syntax is as follows
./configure --without-uhd --with-lms
Great thanks for the tutorial!!! I got it to work! But I am running into an issue, I have tested with and am broadcasting at 950 mhz, I would like to change the broadcast freq to 1900 for T-mobile gsm US. When I change the config parameter in the osmo-bts-trx.cfg from GSM900 to GSM1900 it crashes. Any help would be appriciated.