24:41 play_arrow KX-TES824 INITIAL SETTING AND PC PROGRAMMING OVERVIEW IP-PBX FREE TRAINNING CHANNEL visibility 60 schedule 9 سال پیش favorite
22:14 play_arrow KX-NS500 PANASONIC IP-PBX SYSTEM OVERVIEW IP-PBX FREE TRAINNING CHANNEL visibility 6 schedule 9 سال پیش favorite
13:07 play_arrow PANASONIC IP-PBX KX-HTS24 SYSTEM OVERVIEW IP-PBX FREE TRAINNING CHANNEL visibility 254 schedule 9 سال پیش favorite
11:34 play_arrow PANASONIC KX-TES824 PT PROGRAMMING IN 5 MINUTES IP-PBX FREE TRAINNING CHANNEL visibility 60 schedule 9 سال پیش favorite