Description Base Users / Max Users: 300 / 500 Max Concurrent Calls: 60 / 120 Base / Max Call Center Agents: 300 / 500 Max FXS Ports: 16 Max FXO/BRI Ports: 16 Max GSM/3G/4G Ports: 6 Max E1/T1/J1 Ports: 2 Expandable D30: 2 Transport Protocol: UDP, TCP, TLS, SRTP Voice Codec: G711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC Video Codec: H263, H263P, H264, MPEG4 DTMF: In-band, RFC4733, RFC2833, SIP INFO NFC Read/Write: Yes Ethernet Interfaces: 2 x (10/100/1000 Mbps) Hard Disk: 1 SATA (Up to 2TB) USB: 1 (Up to 2TB) Power Supply: AC 100-240V 50/60HZ 1.5A max Form Factor: 1U Rackmount Operation Range: 0°C to 40°C, 32°F to 104°F Storage Range: -20°C to 65°C, -4°F to 149°F Humidity: 10-90% non-condensing
