sipgrep(8) on Linux
The text b4f8d4c3d4b7, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
sip packet grep
Flags it lists
-
-A -
-C -
-D -
-F -
-G -
-H -
-I -
-J -
-M -
-N -
-O -
-P -
-R -
-S -
-T -
-V -
-a -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-j -
-l -
-m -
-n -
-p -
-q -
-s -
-t -
-v -
-w