Gold Member Since 2015
Audited Supplier
Xiamen Yeastar Information Technology Co., Ltd.

IP PBX System, SIP Trunk, GSM Channel manufacturer / supplier in China, offering Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional, Scalable and Modular IP PBX for Small Business with 300 to 500 Users, Yeastar S50 VoIP PBX System with GSM/3G/4G Network for Small Business and so on.

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Supplier Homepage Product S-Series VoIP PBX S20 Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Xiamen, China
Production Capacity: 5000/Month
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: S20
  • Port Number: <8
  • Transmission Rate: 10/100mbps
  • Information Transmission Method: Digital
  • Application: Universal Type
  • Brand: Yeastar
  • Concurrent Calls: 10
  • Bri Ports (Max): 4
  • LAN: 1 10/100 Mbps
  • VoIP Trunks: 20
  • Protocol: SIP (Rfc3261), Iax2
  • Transport Package: 20 PCS in One Carton
  • Origin: Xiamen
  • Type: Telephone Channel Equipment
  • Transmission Mode: Full Duplex/ Half Duplex
  • Structure of Port: Modular PBX
  • Connection Mode: Air Connection
  • Scope of Cover: Wan/LAN
  • Users: 20
  • Analog Ports (Max): 4
  • GSM Ports (Max): 1
  • Wan: 1 10/100 Mbps
  • Ivr: 32
  • Trademark: Yeastar
  • Specification: 160 x 160 x 30 mm
  • HS Code: 85176233
Product Description

Product Description


Yeastar S20 is a stand-alone telephone system offering an unrivalled range of features to small business with less than 20 users. It supports 10 concurrent calls and various combinations of telephony ports including FXS, PSTN, ISDN BRI, and GSM/CDMA/3G.

Scalable Modular Design

Yeastar S20 VoIP PBX provides flexible telephony interfaces combination while allowing for future scalability with unique modular design. Besides the built-in rich SIP capabilities, S20 allows you to decide what types of extensions and physical trunks you need in your telephone system. When your business grows, adding more users and concurrent calls are also possible with S20.

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

O2 Module: 2 FXO ports to Terminate two analog PSTN (POTS) lines
S2 Module: 2 FXS ports to terminate two analog telephones
SO Module: Unique PSTN Fallback Function
B2 Module: 2 BRI Ports to terminate two BRI lines
GSM Module: 1 GSM Channel (850/900/1800/1900 MHz)
UMTS Module: 1 UMTS Channel (UMTS 900/2100MHz or 850/2100MHz or 850/1900MHz)

Easy Configuration=Plug'n Play+Innovative Metro UI

Control and update your phone system with intuitive and graphical UI and point-and-click configuration using S-Series online Configuration Panel. Everything can be managed easily from any Internet-enabled device.

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

New Features+ Existing Rich Features ( No License Fee)

- Automated Attendant (IVR)
- Blacklist/Whitelist
- Call Back
- Call Detail Records (CDR)
- Call Monitor
- Call Recording
- Call Routing
- Call Transfer
- Conference
- Distinctive Ringtone
- Event Center
- Email to SMS/SMS to Email
- Fax to Email
- Find Me/Follow Me
- Mobility Extension

-Music on Hold
- Queue
- User Portal
- User Privileges
- Video Calls
- Voicemail
- Voicemail to Email
- and More

CapacityUsers2050100 (up to 200)300 (up to 500)
Max Concurrent Calls102530 (up to 60)60 (up to 120*)
Max Analog Ports481624
Max BRI Ports481624
Max Cellular Ports1466
Max E1/T1/PRI Ports--23
NetworkLAN1 10/100 Mbps1 10/100/1000 Mbps
WAN1 10/100 Mbps1 10/100/1000 Mbps
IP ServicesStatic IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT, STUN
VoIPProtocolSIP (RFC3261), IAX2
Transport ProtocolUDP, TCP, TLS, SRTP
VoIP Trunks2050100100
Audio CodecG711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC
Video CodecH263, H263P, H264, MPEG4
DTMFIn-band, RFC4733 (RFC2833), SIP INFO
Automatic Call RecordingYesYesYesYes
Voicemail5000 min (expandable)10000 min (expandable)
Remote ExtensionsYesYesYesYes
T.38 FaxYesYesYesYes
SMS to Mail/ Mail to SMSYesYesYesYes
App CenterYesYesYesYes
External StorageTF Card SD Card SD Card and 2.5 inch SATA HDD
PhysicalPowerDC 12V 1AAC 100-240V 50/60HZ 0.6A maxAC 100-240V 50/60HZ 1.8A max
Dimensions (L*W*H) (mm)160*160*30340*210*44440*252*44440*252*44
Power Consumption1.8-10.6 W2.1-18.5 W5.5-41.2 W6.2-59.1 W
EnvironmentOperation Range: 0ºC-40ºC, 32ºF-104ºF; Storage Range:-20ºC-65ºC, -4ºF-149ºF; Humidity: 10-90% non-condensing
MountingDesktop & Wall-mountRack-mount

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

Shipping & Services


·Within 2-3 days after the payment
·Support any delivery methods as you require, such as:

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

Superior Customer Services

·3 year Warranty
·Free firmware upgrade for life
·24 hours Technical support through phone calls, emails, skype, and remote assistance
·Various training, including sales and technical training like online Webinar
·Customizable products with OEM/ODM service

Company & Exhibitions

About Yeastar
Yeastar specializes in the developing and manufacturing of IP-PBX and VoIP gateways, and is committed to the distribution of new generation technology products in the field of enterprise communications. In the mean time, Yeastar provides the cost-efficient solutions for ITSP to develop the enterprises ultimate purchase market.
Yeastar designs, deploys and delivers innovative IP solutions to worldwide applications and maintains the long-term stability of products to greatly benefit users. Yeastar is consistently recognized in VoIP industry for the innovative and high-performance professional networking products.
Yeastar factory applies SMT craft with strict quality control is consistent with ISO 9001 Quality Accreditation.

Yeastar in the World
Yeastar attends professional exhibitions together with distributors every year, such as, CeBIT, ITEXPO EAST, GITEX in Dubai, Convergence India, Elastix World, BroadSoft Connections, CommunicAsia...ect.

Yeastar S20 VoIP PBX System for Small Business GSM Channel Optional

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