*) ppp - added "at-chat" command; Does not work with USSD commands. with at-chat: /interface ppp-client at-chat 3 input="AT+CUSD=1,AA582C3602,15" output: AT+CUSD=1,AA582C3602,15 OK with serial-terminal: /system serial-terminal port=usb4 channel=2 AT+CUSD=1,AA582C3602,15 OK +CUSD:...