GW502 Overview
GW502 GW502 IP 5 GW501 FSK/DTMF 0/ IP HOLD 04 IP 100 P/T 50 DTMF/FSK 100 50 1~99 5 m o .c U 4 t e e h S a t a .D w w w (8 (8 ) ) 16 P/T IP R 0 HOLD IP IP IP Rev:V1.0 1 m o .c U 4 t e e h S a at .D w w w 2002.08.09 GW502 1 2 3 4 5 6~13 14~21 22 23 24~47 48 49.