# Yeastar 4\*BRI ports gateway/controller 10, 100 Mbit/s

**URL:** https://aio.lv/en/product--triton-tb400--12078284
**Data updated:** 2026-03-12 21:57 (EET)
**Category:** VoIP Gateways
**Manufacturer:** Triton
**Manufacturer code:** TB400
**EAN:** 6926150036611
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 556.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 460.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--triton-tb400--12078284

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Yeastar 4\*BRI ports. Voice codecs: G.711, G.722, G.726, G.729A. Supported network protocols: UDP, TCP, TLS, SRTP, VoIP protocols: SIP (RFC3261). Ethernet LAN data rates: 10,100 Mbit/s, Networking standards: IEEE 802.3, IEEE 802.3u, Modulation: DTMF. Input voltage: 100 - 240 V, Output voltage: 12 V, Output current: 2 A. Width: 213 mm, Depth: 160 mm, Height: 44 mm

## Long description

Yeastar 4\*BRI ports gateway/controller 10, 100 Mbit/s is a compact standalone VoIP BRI gateway designed to connect ISDN BRI lines with IP-based telephony systems. The device provides four BRI interfaces and supports common voice codecs and network protocols to enable reliable voice transport between public ISDN networks and SIP-based IP PBX systems. It accepts universal AC input voltage and delivers a regulated 12 V DC output for device operation, while its small footprint allows installation in limited-space environments.
Advantages
The gateway supports multiple voice codecs including G.711, G.722, G.726 and G.729A, enabling interoperability with a wide range of endpoints and ensuring efficient bandwidth use. Network compatibility includes Ethernet at 10/100 Mbit/s and adherence to IEEE 802.3 and IEEE 802.3u standards for predictable connectivity. SIP (RFC3261) support and transport options such as UDP, TCP, TLS and SRTP provide flexible signaling and optional media protection. Device dimensions and compact power supply make it suitable for rack, shelf or desktop placement in office environments.
Suitable for
Connecting an IP PBX to public ISDN BRI lines
Migrating from ISDN BRI telephony to VoIP while keeping existing BRI infrastructure
Branch office deployments with limited space and a need for ISDN connectivity
Systems requiring support for multiple voice codecs and secure transport protocols
Key specifications
Interfaces: 4 BRI ports for ISDN connectivity
Voice codecs: G.711, G.722, G.726, G.729A
VoIP protocol: SIP (RFC3261)
Network protocols: UDP, TCP, TLS, SRTP
Ethernet data rates: 10/100 Mbit/s
Networking standards: IEEE 802.3, IEEE 802.3u
Modulation: DTMF signaling support
Power input: 100–240 V AC; power output: 12 V DC, 2 A
Dimensions (W×D×H): 213 × 160 × 44 mm
How to use
Install the gateway in a suitable location with access to both the ISDN BRI lines and your LAN. Connect the AC power source to the device and verify the 12 V DC output. Use the web-based GUI to configure TE/NT operation modes, SIP account settings, codec priorities and network parameters. Map BRI channels to SIP trunks or extensions according to your call routing plan and test inbound and outbound call flows. Apply security settings such as TLS and SRTP where required and save the configuration.
Usage recommendations
For reliable operation, place the gateway in a ventilated area and ensure stable mains power. Keep firmware up to date to maintain interoperability and security. When integrating with an IP PBX, verify codec and DTMF settings on both sides to avoid audio or signaling issues. Use TLS and SRTP if supported by your PBX and SIP trunk provider to protect signaling and media streams.

## Specifications

| Feature | Value |
|---|---|
| Supported network protocols | UDP, TCP, TLS, SRTP |
| Height | 44 mm |
| Input voltage | 100 - 240 |
| Output voltage | 12 |
| LED indicators | Y |
| Modulation | DTMF |
| Firewall security | Yes |
| Width | 213 mm |
| Depth | 160 mm |
| Networking standards | IEEE 802.3u, IEEE 802.3 |
| Voice codecs | G.726, G.729A, G.722, G.711 |
| VoIP protocols | SIP (RFC3261) |
| Wi-Fi | No |
| Output current | 2 A |
| Web-based management | Yes |
| Ethernet LAN data rates | 100, 10 |
| Dynamic DNS (DDNS) | Yes |
| Static route | Yes |

## FAQ

### How much does the Yeastar 4\*BRI ports gateway/controller TB400 cost, and is it available for purchase?

The price is 556.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Yeastar 4\*BRI ports gateway/controller TB400 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Triton products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Triton service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Yeastar 4\*BRI ports gateway/controller TB400?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12078284/67577056_large.webp