Hi Osmocom,

I'm trying to integrate the FreeSwitch as my external MNCC in my test lab using split stack. Currently, I'm getting an error message on FreeSwitch SIP/2.0 400 Missing Contact Header. I'm little bit confused with the error and I don't know where to troubleshoot this.

I've attached my osmo configurations and pcap trace for your reference. Hoping for your reply. Thank you.