Grandstream GSC3506 1-way SIP speaker

The Grandstream GSC3506 is a single-direction SIP speaker for public address systems, enabling robust announcement solutions to enhance security and communication. Key Features: HD acoustic chamber for superior sound quality Supports SIP paging, multicast paging, and priority call-waiting override Wideband & full-band audio codecs, including Opus & G.722 Connectivity options: 2-pin switch input port Alarm-in port Volume control keys Reset button 10/100Mbps PoE/PoE+ network port USB port