Only one way RTP Audio

Hi,
since today morning we have a really rare problem, on some connections we have only one way RTP or in other words: Both Legs have ONLY inbound RTP Audio, no Outbound, looks like sems is not relaying RTP, but only for some calls (also from same Gateways). Any Ideas?

For example:
PBX to SEMS: → RTP Audio to SEMS which is not getting to Carrier, no incoming
Same Call SEMS → Carrier, ← RTP Audio from Carrier, which is not getting to PBX

could you share pcap trace and debug log?

Hi,
so far, we created a new Dialpeer at 9:40 since then one SEMS Thread is on 100%, we will try to restart the service to fix that (SEMS does 60 Calls at the moment, so no reason for 100% on one core).
But I also will send you a PCAP via PM, Debug Log is not activated as this happened in production

since then one SEMS Thread is on 100%

It may indicate some SEMS bug. But this situation can’t be related with dialpeer addition, so this is just coincidence.