I think you need to capture w tcpdump on kamailio port and then check what packet is causing this.

tcmdump -f "port 5060" -w file.pcap 

Then open file in wireshark and try figure out ( i think not valid sip packet coming on 5060 port).

wt., 14 sty 2020 o 08:54 Alex Balashov <abalashov@evaristesys.com> napisał(a):

It would appear that an incoming SIP message has one or more grammatically invalid headers that confuse the parser?

—
Sent from mobile, with due apologies for brevity and errors.

> On Jan 14, 2020, at 2:37 AM, Ratanraj Singh <ratanraj.singh2@gmail.com> wrote:
>
> 
> Hi All,
> I am troubling with kamailio service error. Can  someone help on this issue?
>
>
> <image.png>
>
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