الوصف

Physical Interfaces
• Phone Interfaces: 4FXS and 4FXO, RJ**1
• Ethernet Interfaces: 4*RJ**5 *0/**0Base-Tx, RJ**5
Voice & Fax
• Protocol: SIPv2, SDP, RTP (RFC***3)
• Codecs: G.**1A/U law, G.**3.1, G.**9A/B
• Echo Cancellation: G.**8 with up to **8ms
• FAX: T.*8, Pass-through
• DTMF: Signal, RFC***3, INBAND
• NAT Traversal: STUN, Dynamic/Static NAT
• QoS: VLAN **2.1P/Q, DIFFServ ToS
FXO Port 
• Dialing Modes: Pulse and DTMF
• Pulse Dialing: *0 and *0 PPS
• Caller ID: DTMF, Bellcore Type 1&2, ETSI, BT, NTT
• Busy Tone/No Current Detection, Polarity Reversal Detection
• Lifeline: Power/Network Failure Lifeline
FXS Port
• Dialing Modes: Pulse and DTMF
• Caller ID: DTMF and FSK Presentation
• Hook Flash: Local or Relay processing
• Polarity Reversal: for Call Connect/Disconnection Signaling
Supplement Services
• Call Waiting, Call Transfer (Blind transfer, Attendant Transfer), Call Forwarding, Hotline, Call Hold, Do-not-disturb
Power Supply
• Input: *2VDC 2A, Power Adapter
• Power Consumption (Typical): *0W
Other
• Dimension: **2(L)***2(W)**0(H) mm
• Weight: 1.0KG
• Temperature (Operation):**0 ℃~ *5 ℃
                    (Storage): **0 ℃~*0 ℃
• Humidity: *0%**0% Non-condensation
Homologation
• CE, FCC