Intercoms & PA – GSC3510 Product Description GSC3510 SIP Intercom Speaker & Mic Full-duplex speakerphone with HD acoustic chamber, advanced acoustic echo cancellation 3 directional mics Integrated Wi-Fi and Bluetooth ® One 10/100Mbps network port with PoE/ PoE+ 2-pin multi-purpose input See also different: ATAs & Gateways – GXW4200 Series v2 ATAs & Gateways – HT812 v2 – HT814 v2 HT818 v2 GXV IP Video Phones – GXV3480 GXP Series IP Phones – GXP2140