DPH-500SE/B/F1 ///SIP Speaker , 2 Ethernet ports ( PoE ) , 2 SIP lines ,Build-in  high-fidelity speaker and 30W power amplifier ,A built-in audio output to connect external  speaker ,Support external power supply

SIP Speaker , 2 Ethernet ports ( PoE ) , 2 SIP lines ,Build-in  high-fidelity speaker and 30W power amplifier ,A built-in audio output to connect external  speaker ,Support external power supply