Module
Showing all 4 results
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PBX Modules, VoIP & Telephony
Yeastar Expansion Module B2
Technical Specifications: Yeastar B2
Ideal For:
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Businesses with Existing ISDN Infrastructure: Perfect for companies that already have a contract for BRI lines and want to upgrade their PBX hardware without changing their service provider.
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High-Stability Voice Requirements: Ideal for law firms, financial institutions, and medical offices where call drops or “internet-related” audio issues are not acceptable.
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Hybrid Communication Strategies: Use BRI lines for your primary incoming business number and SIP trunks for low-cost international outgoing calls.
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Redundancy & Failover: Configure the B2 module as a backup—if your primary fiber internet goes down, your office can still make calls via the digital BRI lines.
SKU: B2 -
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PBX Modules, VoIP & Telephony
Yeastar Expansion Module GSM
Technical Specifications: Yeastar GSM Module
Ideal For:
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Reducing Monthly Phone Bills: Ideal for offices that frequently call staff or clients on their mobile phones; route those calls through a SIM card instead of expensive landline-to-mobile trunks.
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Remote or Temporary Sites: Perfect for construction sites, pop-up shops, or agricultural projects where fixed-line internet or copper phone lines are unavailable.
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Business Continuity: A must-have for businesses that cannot afford to be “offline” during a fiber cut or ISP outage.
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Mobile-First Marketing: Use a dedicated mobile number for your business that customers feel more comfortable calling or texting.
SKU: GSM -
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PBX Modules, VoIP & Telephony
Yeastar Expansion Module O2
Technical Specifications: Yeastar O2
Ideal For:
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Transitioning Businesses: Perfect for companies moving from an old analog PABX to a modern VoIP system who aren’t ready to port their numbers to a SIP provider yet.
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Hybrid Connectivity Strategies: Use traditional landlines for high-reliability incoming calls and SIP trunks for low-cost international outgoing calls.
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Emergency Failover: Configure your PBX to use the analog lines as a “backup” trunk—if your fiber internet or SIP service goes down, your office can still make calls via the copper landline.
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Areas with Unstable Internet: Ideal for locations where VoIP/SIP performance is inconsistent, providing a rock-solid analog backbone for voice communications.
SKU: O2 -
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PBX Modules, VoIP & Telephony
Yeastar Expansion Module S2
Technical Specifications
Ideal For:
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Hospitality & Hotels: Perfect for connecting analog guestroom phones to a modern IP-PBX system without the need for expensive rewiring or IP handsets in every room.
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Legacy Fax Integration: The most reliable way to connect a physical fax machine to your office network, ensuring stable document transmission over your VoIP system.
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Cordless Mobility: Easily connect an analog cordless phone base (like a Gigaset or Panasonic) to the S2 port to give your staff mobile freedom around the office or warehouse.
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Budget-Conscious Upgrades: Ideal for businesses moving to VoIP who want to phase in IP phones slowly while keeping existing analog sets operational.
SKU: S2 -
