Yeastar B2 Module — 2‑Port ISDN BRI Expansion Module

SKU: B2 Module
In Stock
Call for Pricing
In Stock

The Yeastar B2 Module is a modular ISDN BRI expansion card that adds dual BRI (NT/TE) ports to compatible Yeastar VoIP PBX systems — ideal for integrating digital ISDN lines and channels into hybrid telephony deployments.

Description

Yeastar B2 Module — Dual BRI (ISDN) Ports for PBX Expansion

The Yeastar B2 Module is a compact and reliable 2-Port ISDN BRI expansion module designed to enhance the telephony capabilities of compatible Yeastar VoIP gateways and PBX systems. By adding ISDN BRI connectivity, the B2 Module enables integration with digital ISDN networks, providing businesses with flexible voice and data communication options where traditional analog or SIP trunks need augmentation.

Featuring two independent ISDN BRI ports, the module supports digital voice trunking, ISDN-based data services, and smooth interoperability with IP-PBX systems. Its seamless integration ensures efficient call routing, robust signaling support, and enhanced network flexibility — making it ideal for offices, branch sites, retail environments, and business continuity applications.

Whether deployed as a primary BRI trunk, a backup for SIP/PSTN connections, or as part of a hybrid telephony strategy, the Yeastar B2 Module delivers dependable performance, simplified installation, and expanded trunking options for modern communication infrastructures.

Ideal Use Cases

  • Office Telephony: Replace analog desk phones with feature-rich VoIP phones connected to a SIP PBX or UCM system — enabling call transfer, conference, and voicemail.
  • Call Centers: High-volume call handling with headset support, call recording integration, and CRM screen-pop capabilities.
  • Reception & Executive Desks: Color touchscreen display models provide a professional appearance with easy call management for high-visibility positions.
  • Remote Worker Telephony: Register VoIP phones to the company PBX over the internet — bringing office phone experience to home offices across Egypt.

Why Buy from Da3m?

  • Yealink Authorized Reseller — official channel with vendor-backed warranty and support
  • Egypt-Based Technical Team — local engineers in Alexandria & Cairo for installation, configuration, and troubleshooting
  • Competitive EGP Pricing — transparent pricing with no hidden import fees; contact us for volume discounts
  • Official Warranty — full manufacturer warranty honored and managed through Da3m’s local team
  • Fast Delivery Across Egypt — stock available for immediate delivery to Alexandria, Cairo, and all Egyptian governorates

Frequently Asked Questions

Is the Yeastar B2 Module — 2‑Port ISDN BRI Expansion Modu compatible with all SIP PBX systems?
Yes. This phone is SIP-compliant and compatible with all major SIP PBX systems including Grandstream UCM, Yeastar, Asterisk, 3CX, FreePBX, and hosted SIP trunking providers available in Egypt.
Can the Yeastar B2 Module — 2‑Port ISDN BRI Expansion Modu be registered to a remote PBX over the internet?
Yes. SIP phones register to the PBX via the internet — enabling remote workers to use the office phone extension from home or any internet-connected location in Egypt.
Does the Yeastar B2 Module — 2‑Port ISDN BRI Expansion Modu support Power over Ethernet (PoE)?
Most IP phones support PoE (IEEE 802.3af) — check the specifications for this model. PoE eliminates the need for a separate power adapter, simplifying cable management on the desk.
What provisioning support does Da3m offer for VoIP phones?
Da3m pre-provisions VoIP phones with your PBX settings (extension number, SIP server address, codec preferences) before delivery — phones are plug-and-play upon arrival at your office.

Related Products

See our full VoIP phone collection in Egypt. Pair with a VoIP gateway for PSTN connectivity or a Grandstream UCM IP PBX for a complete phone system.

Part Number / SKU: B2 Module

Key Features:

  • 2 × BRI Ports: Adds two digital ISDN BRI interfaces (each with two bearer channels) for voice/data.

  • NT & TE Mode Support: Flexible configuration to act as either network termination or terminal equipment.

  • Broad Compatibility: Works with Yeastar S‑Series PBX (e.g., S20, S50, S100, S300) and P‑Series PBX (P550, P560, P570) when paired with an EX08 expansion board.

  • Multiple ISDN Channels: Each BRI port supports two simultaneous calls (typical BRI bearer channels), enabling up to four concurrent voice/data channels.

  • Seamless Integration: Easily installs into module slots on compatible Yeastar PBXs and is managed through the PBX web interface.

  • Compact Modular Design: Uses existing PBX expansion infrastructure without requiring external hardware.

Hardware & Technical Specs:

  • Module Type: VoIP telephony expansion module

  • Port Type: 2 × ISDN BRI (RJ11/RJ12 as applicable)

  • BRI Channels: Each port gives two BRI bearer channels (typically 2 × 64 kb/s) and a 16 kb/s data channel for signaling.

  • Mode Support: NT (Network Termination) and TE (Terminal Equipment)

  • Compatibility: S‑Series and P‑Series Yeastar PBXs with modular expansion support (via EX08 or similar).

  • Installation: Hot‑plug into expansion board slot (e.g., EX08) — powered through PBX chassis.

  • Management: Configurable through the Yeastar PBX web admin portal.

Technical Datasheet

You can download the full technical documentation for this product from the link below:

Download PDF Datasheet

No products in the cart.

Log in

You dont have an account yet? Register Now