Error 606 The port is not connected ，拨号606错误

Error 611 The route is not available/612 The route is not allocated，拨号611错误

Error 718 ，拨号718错误

Error 621 Cannot open the phone book file Error 622 Cannot load the phone book file Error 623 Cannot find the phone book entry Error 624 Cannot write the phone book file Error 625 Invalid information found in the phone book 拨号621错误，拨号622错误，拨号623错误，拨号624错误，拨号625错误