contacta STS-K071 Ob Txoj Kev Qhov rai Intercom System Tus neeg siv phau ntawv
Kawm yuav ua li cas rau nruab thiab siv Contacta STS-K071 Ob Txoj Kev Qhov rai Intercom System nrog rau phau ntawv qhia siv dav. Xws li cov ntsiab lus ntawm cov hais lus thiab microphone cov khoom, kev sib txuas, thiab cov lus qhia kev teeb tsa. Kev xaiv lub rooj sib hais muaj nyob. Zoo meej rau kev sib txuas lus meej los ntawm cov iav lossis cov ntxaij vab tshaus ruaj ntseg.