SIZE_TCP           75 src/ftmod/ftmod_isdn/ftmod_isdn.c #define OVERHEAD                SIZE_ETHERNET+SIZE_IP+SIZE_TCP+SIZE_TPKT
SIZE_TCP           76 src/ftmod/ftmod_isdn/ftmod_isdn.c #define MAX_Q931_SIZE           MAX_ETHER_PAYLOAD_SIZE-SIZE_IP-SIZE_TCP-SIZE_TPKT
SIZE_TCP           77 src/ftmod/ftmod_isdn/ftmod_isdn.c #define TPKT_SIZE_OFFSET        SIZE_ETHERNET+SIZE_IP+SIZE_TCP+2
SIZE_TCP          237 src/ftmod/ftmod_isdn/ftmod_isdn.c         q931size+=SIZE_IP+SIZE_TCP;