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Mayuri Tendulkar mayuri.tendulkar at gmail.comThanks Neels. Where we can get more information on this? We would like to use this loopback for BER measurements. Is it suitable to do that? On Wed, Sep 21, 2016 at 8:46 PM, Neels Hofmeyr <nhofmeyr at sysmocom.de> wrote: > On Wed, Sep 21, 2016 at 05:47:34PM +0530, Dhananjay kumar wrote: > > One more query regarding loop-back call : > > "bts <0-0> trx <0-0> ts <0-7> lchan <0-1> loopback", > > > > we tried this command to start loop-back call once MS is registered to > the > > network. > > But we are not seeing any loop-back call happening in nitb and osmo-bts > > logs. > > This command only sets a loopback flag on a given lchan and does not > actually > initiate a call. IIUC after setting the loopback, the loopback should > happen > when you make a voice call using that time slot and lchan. > It might make more sense to start a call and set the loopback on the lchan > while the call is active. So this does not replace the other MS. > > From the code it seems the loopback flag is not cleared before / after a > voice > call, so it looks like the given lchan will remain a loopback for any > number of > calls (that end up on that lchan). > > I'm not 100% sure though, only skimmed the code briefly, > I've never used this before. > > ~Neels > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20161001/b301fae4/attachment.htm>