Aug 17, 2021 #1 F friistf Newbie Joined Aug 17, 2021 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 12 Hi, I amusing the command AT+CRSL trying to adjust the ringer volume of the SIM900 - from 0 to 4. But it has no effect - the ringer volume stays uniformly high. Can anyone help? Best regards torben
Hi, I amusing the command AT+CRSL trying to adjust the ringer volume of the SIM900 - from 0 to 4. But it has no effect - the ringer volume stays uniformly high. Can anyone help? Best regards torben