Re: [Openbts-discuss] OpenBTS Osmo-TRX high noise value

[Mona L. <mon...@gm...>]

Hi Frédéric,

Thank you for your answer. I have read the thread you linked me.
I have an Ettus USRP E110 which means it is embedded and all the OpenBTS
components are running on the device itself, so it is not a problem of a
virtual/physical server.

My problem manifests the same as Heiko Rehm explained in his thread.


"Instead of any Audio - total silence. After a few seconds, the call get
dropped (I guess thats some normal silence detection watchdog)"



The thing is I can hear sound from demo extensions from Asterisk (calling
600, 2600, etc.)

I thought the problem resided with the noise value. Does the distance from
the handsets to the station have anything to do with it?

Is it more related to Asterisk?

I can't figure where should I look for the problem.




2016-03-09 16:28 GMT+02:00 Daigle, Frédéric <fd...@cm...>:

> Hi Mona,
>
>
> Have you seend this thread regarding the no audio-issue?
>
> https://sourceforge.net/p/openbts/mailman/message/34886897/
>
>
> For the Noise RSSI, the value makes no sense. But if you can place a call
> between two phones, then I don't think the problem is related to RF Noise.
>
>
> Regards,
>
> Frédéric
>
>
> ________________________________
> De : Mona Lisampson <mon...@gm...>
> Envoyé : 9 mars 2016 05:43
> À : ope...@li...
> Objet : [Openbts-discuss] OpenBTS Osmo-TRX high noise value
>
> Hi all,
>
> I am a student currently studying OpenBTS. I have an Ettus USRP E110.
> I have installed OpenBTS 5.0 according to the steps listed on the OpenBTS
> wiki:
>
> http://openbts.org/w/index.php?title=E3x0#USRP_E310_and_E100.2FE110
> and
>
> http://openbts.org/w/index.php?title=BuildInstallRun#Building.2C_Installing_and_Running_OpenBTS
>
> I have successfully attached 2 MS to the BTS and placed a call to the 600
> extension on asterisk and also between them. The problem is that there is
> no sound between the 2 MS.
>
>
> The output of the noise command is strange and I think it has something to
> do with it:
>
> OpenBTS> noise
> noise RSSI is -2147483647 dB wrt full scale
> MS RSSI target is -50 dB wrt full scale
> INFO: the current noise level is acceptable
>
> OpenBTS> power
> current downlink power -10 dB wrt full scale
>
>
> Also, OsmoTRX starts with the following message which is repeated
> periodically. Is this normal or something to worry about?
>
> NOTICE 111716960 10:39:28:3 Transceiver.cpp:404:pushRadioVector: dumping
> STALE burst in TRX -> USRP interface.
>
> Can anyone help me? If you need additional info, I will provide it.
>