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Description
Yeastar S20 IP PBX – 20 Users, 10 Concurrent Calls, Modular VoIP PBX, Unified Communications, SIP & GSM/4G SupportYeastar S20 IP PBX Key Product Specifications: Manufacturer: Yeastar Model: S20 Product Type: IP PBX Max Users: 20 Max Concurrent Calls: 10 Max FXS Ports: 4 Max FXO BRI Ports: 4 Max GSM 3G 4G Ports: 1 Max 4G Data Port: 1 VoIP Trunks: 20 Protocol Support: SIP (RFC3261), IAX2 Transport Protocols: UDP, TCP, TLS, SRTP Ethernet Interfaces: 2 10 100 Mbps Voicemail Storage: 10,000 minutes (expandable) T. 38 Fax: Supported Hot Standby: Supported Power Supply:
Yeastar S20 IP PBX Key Product Specifications:
- Manufacturer: Yeastar
- Model: S20
- Product Type: IP PBX
- Max Users: 20
- Max Concurrent Calls: 10
- Max FXS Ports: 4
- Max FXO/BRI Ports: 4
- Max GSM/3G/4G Ports: 1
- Max 4G Data Port: 1
- VoIP Trunks: 20
- Protocol Support: SIP (RFC3261), IAX2
- Transport Protocols: UDP, TCP, TLS, SRTP
- Ethernet Interfaces: 2 × 10/100 Mbps
- Voicemail Storage: 10,000 minutes (expandable)
- T.38 Fax: Supported
- Hot Standby: Supported
- Power Supply: DC 12V 1A
- Dimensions: 16 × 16 × 3 cm
- Weight: 0.3 kg
- Power Consumption: 1.8–10.6 W
- Mounting: Desktop & Wall-mount
- Operating Temperature: 0°C to 40°C
- Storage Temperature: -20°C to 65°C
Yeastar S20 IP PBX is a compact modular VoIP PBX designed for small businesses that need reliable unified communications at best price. Supporting up to 20 users and 10 concurrent calls, it integrates SIP, PSTN, ISDN BRI, and GSM/3G/4G connectivity into a flexible platform. With built-in Linkus UC apps, voicemail, IVR, call routing, conferencing, auto provisioning, and remote management, the S20 delivers a simple yet powerful communication system with low power consumption and no extra licensing fees.
Yeastar S20 IP PBX Key Product Features:
- Supports 20 users and 10 concurrent calls
- Built-in voicemail, IVR, call routing, and conferencing
- Supports SIP, PSTN, ISDN BRI, and GSM/3G/4G
- Integrated Linkus UC apps for mobile and desktop
- Auto provisioning for IP phones
- Internal firewall with TLS and SRTP security
- Expandable modular PBX design
- Remote management and multisite support
- Low power consumption and compact design
- No extra licensing fees or hidden costs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Sweetest book!
Format: Hardcover
I think this is the cutest little book and it makes a perfect gift for dads! Especially first time dads or dads that are having a first time daughter. Great for a gift for Father’s Day, gender reveal, or just to gift dad in general! It’s a sweet story to read and dad and daughter will both love it!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Very cute
Format: Hardcover
Very cute book. The illustrations are well done. The story line is adorable. Great for young children. Good gift for a boy or a girl.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
So incredibly beautiful
Format: Hardcover
So sweet and such high quality paper and illustrations
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Must read
Format: Hardcover
This is such a sweet book. Loved the message in it.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Valuable lesson
Format: Board book
I bought this book for a baby shower as it was one of my kids favorite books. It is absolutely the cutest book, and will be a great addition to anyone's library. Quality book, great pictures and story. Value for the book and story is hard to beat!
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Reviewed in the United States on May 4, 2026