Yeastar S20 VoIP PBX Without Module

Product Description
Users 20
Max Concurrent Calls 10
Max Analog Ports 4
Max BRI Ports 4
Max Cellular Ports 1
Max E1/T1/J1 Ports –
VoIP Trunks 20
Protocol SIP (RFC3261), IAX2
Transport Protocol UDP, TCP, TLS, SRTP
Codec G711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC, H263, H263P, H264, MPEG4
DTMF In-band, RFC4733, RFC2833, SIP INFO
LAN 1 × 10/100 Mbps
WAN 1 × 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
USB –
Power DC 12V 1A
Size (L x W x H) (cm) 16 x 16 x 3
Weight 0.3 kg
Power Consumption 1.8-10.6 W
Environment, 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
Mounting Desktop & Wall-mount 1U Rack-mount