GRANDSTREAM GSC3506 SIP-Multicast Intercom Speaker Installation Guide
GSC3506 SIP-Multicast Intercom Speaker qhia kev teeb tsa sai muaj cov lus qhia meej meej HD suab ua haujlwm nrog lub siab ncaj ncees 30-Watt HD hais lus. Tus neeg hais lus SIP muaj zog no yog qhov zoo tshaj plaws rau kev tsim cov lus tshaj tawm xov xwm tshaj tawm xov xwm uas nthuav dav kev nyab xeeb thiab kev sib txuas lus hauv chaw ua haujlwm, tsev kawm ntawv, tsev kho mob, thiab ntau dua.