charon.plugins.p-cscf.enable {} Section to enable requesting P-CSCF server addresses for individual connections. charon.plugins.p-cscf.enable. = no is the name of a connection with an ePDG from which to request P-CSCF server addresses. is the name of a connection with an ePDG from which to request P-CSCF server addresses. Requests will be sent for addresses of the same families for which internal IPs are requested.