Recently encountered a delay issue, packets arrive on system but Kamailio doesn’t process right away. Here are a few details, any direction on what I can do to narrow down is appreciated.

The receive queue normally sits at 0 or has random spike, when this issue occurs receive queue remains high like the below output.

Version 5.1.5

ss -4 -n -l | grep 5060

udp    UNCONN     321536 0      207.241.130.2:5060                  *:*        

tcp    LISTEN     0      128    207.241.130.2:5060                  *:*       

-dan