|  Users: 20• Max Concurrent Calls: 10
 • Max Analog Ports: 4
 • Max BRI Ports: 4
 • Max Cellular Ports: 1
 • VoIP Trunks: 20
 • Protocol: SIP (RFC3261), IAX2
 • Transport Protocol: UDP, TCP, TLS, SRTP
 • Codec: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, Speex, ADPCM, iLBC, H.263, H.263P, H.264, MPEG4
 • DTMF: In-band, RFC4733, RFC2833, SIP INFO
 • LAN: 1 x 10/100 Mbps
 • WAN: 1 x 10/100 Mbps
 • IP Services: Static IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT,STUN
 • Voicemail: 5000 min (expandable)
 • Firewall: Yes
 • T.38 Fax: Yes
 • App Center: Yes
 • External Storage: TF card
 • Power: DC 12V 1A
 • Size: 16 x 16 x 3 cm (6.3 x 6.3 x 1.18 ")
 • Weight: 0.3 kg (0.66 lbs)
 • Power Consumption: 1.8 to 10.6 W
 • Environment:
 Operation Temperature: 0 to 40°C (32 to 104°F)
 Storage Temperature: -20 to 65°C (-4 to 149°F)
 Humidity: 10 to 90% non-condensing
 • Mounting: Desktop and Wall-Mount
 
 | Attended Transfer	 Blacklist Blind Transfer	 BLF Support Call Back	 Call Detail Records Call Forwarding Call Pickup Call Routing	 Call Waiting Caller ID	 Conference Define Business Hours	 Dial by Name DISA (Direct Inward System Access)	 Distinctive Ringtone DNIS	 Do Not Disturb Fax to Email	 Firewall Follow me	 IP Blacklist LDAP	 IVR (Interactive Voice Response) Intercom/Zone Intercom	 Mobility Extension Music on Hold	 Paging/Zone Paging Phone Provisioning	 PIN User Queue	 Ring Group Skype Integration	 Speed Dial Spy Functions	 Three-way Calling Video Calls	 Voicemail Voicemail to email	 Web-based control panel   |