S20

SIP Yeastar S20 VoIP PBX

Support 2 onboard module slots

Direct link to this product's page

IP PBX (IP - Private Branch Exchange) is a system that connects telephone extensions in the organization to the Public Switched Telephone Network (PSTN) and may provide additional audio, video, or instant messaging communication utilizing the TCP/IP (with Internet) protocol stack.
— Users:20, Max. Concurrent Calls:10, Max. Analog Ports:4, Max. GSM/3G/4G ports:1, VoIP Trunks:20
— External Storage TF Card, Firewall, T.38 Fax, Hot Standby, Built-in call recording capability
— Support 2 onboard module slots to custom FXS, FXO, ISDN BRI, GSM/3G/4G.
— Create effective business communication, connecting to traditional lines, VoIP lines, and cellular networks
— Works with: SIP/IAX2, PSTN lines, ISDN BRI, E1/T1/PRI, and GSM/3G/4G
— Future-proof: free lifetime software/firmware upgrade assures reliability over the years.
— Protocol: SIP (RFC3261), IAX2, Transport Protocol: UDP, TCP, TLS, SRTP
— Codec: G711, G722, G726, G729A, GSM, Speex, ADPCM, iLBC, H263, H263P, H264, MPEG4
— DTMF: In-band, RFC4733, RFC2833, SIP INFO
— IP Services: Static IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT, STUN
— Ethernet Interfaces: 2 × 10/100 Mbps , Voicemail: 5000 min (expandable)
— Power: 12VDC/1A/1.8-10.6 W, Size: 160x160x30mm / 0.35Kg

— App Center: Linkus Mobile Client, Phone Provisioning, LDAP Server, Conference Panel, VPN Server, Billing App, Hotel App, QueueMetrics Integration


— Aveilable Modules (Default Delivery without any Module):
S2 - two FXS Ports (add 2 analog telephones)
O2 - two FXO Ports (2 analog PSTN (POTS) lines)
SO - 1 FXS Port & 1 FXO Port
B2 - 2 BRI Ports
GSM - 1 GSM Channel
3G - 1 WCDMA Channel
4G - 3G/4G Voice Call & Data

● Frequent questions