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Markus Stamm markus at stamm.nuHi Andreas: >> can you try the attached patch? Just add the line as shown in the >> patch. It should allow "PRACK" messages and make the stack reply to >> them correctly. > > Thank you for this - the signalling should now work correctly, as the > call connects immediately once the internal extension 221 (against which > osmo-cc-sip-endpoint registers) is called. There is one issue remaining > - once connected, no audio is transmitted. I don't believe this is > related to this patch, though, as my Sipgate account continues working > normally with the patch applied. As I am testing this in an openSUSE VM, > I suspect it will be more of a firewall issue - or perhaps yet another > Auerswald issue. I will be looking into this in more detail a little > later today. I'm also attaching a SNGREP capture just in case this were > helpful. Thank you and I've also created an Auerswald trace. The relevant IP addresses are 10.1.2.1 for the PBX and 10.1.1.14 for the VM. I'm noticing a few ICMP failures (destination host unreachable) which could be indicative of a firewall problem in the VM, but I'm not really sure this actually causes no audio to be transmitted. I'm glad for any indication as to what this could be caused by, and I'll continue investigating the firewall issue also. Best regards, Markus -------------- next part -------------- A non-text attachment was scrubbed... Name: servicetrace_CP5K_pbx_sc1.pcap Type: application/octet-stream Size: 1057648 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/osmocom-analog/attachments/20210425/03f9a683/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 5718 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/osmocom-analog/attachments/20210425/03f9a683/attachment.bin>