On 24 Mar 2017, at 16:09, Edwin Reed-Sanchez ereedsanchez@gmail.com wrote:
Holger,
classic radio interference?
- could this be caused by having amplifiers to high, and being close to another BTS? Should I attenuate the amplification in Osmotrx?
Difficult to say. You can look at the RSL measurement reports and take a look if there is something obvious, e.g. rxlev/rxqual being very bad
looks like a change of SSRC? What does RTP look like?
- where do I gather information for RTP. Is it in the logs, or in the configs. We currently are not using
rtp jitter-buffer 0 in the osmobts config.
In Wireshark under Edit->Preferences->Protocol->RSL ("Use nanoBTS defitnition"). Then you will see IPA CRCX/MDCX/DLCX to manage the audio flow and Wireshark will be able to identify the RTP streams.
With Telephony->RTP->Show all Streams you can see how many streams SRC ip/port, DST ip/port, SSRC exist. Then compare the timestamps from the log with timestamp of the RTP packet. Is there another stream/SSRC? Is this is just the first sequence number (which should be random) and leads to a big jump?
holger