Business Need

Wireless PBX Solution

Add cellular trunks to your business phone system, providing fallback or alternatives for landlines or SIP.

wireless pbx solution banner


GSM, 3G, and 4G connectivity not only reduce telephone expenses but also provide a crucial alternative solution for areas with limited landlines or internet connection.

Yeastar business phone system supports GSM or WCDMA or 4G LTE trunks seamlessly. In the case of an on-premises PBX, cellular trunks can be directly added through the PBX’s built-in telephony module. For cloud or self-hosted PBX, Yeastar TG VoIP gateways enable the addition of cellular trunks. This flexibility allows businesses to leverage cellular connectivity as a reliable and efficient communication option.

Line Up PBX with Cellular Trunks

Redundant Communications

Add cellular trunks to PBX. Ensure continuous call connectivity even in situations where traditional landlines or internet connections are not available.

Rapid Deployment

Setting up a cellular trunk takes less than an hour. The swift deployment can benefit businesses that require quick connectivity solutions, such as temporary offices or remote job sites.

Reduce Call Costs

Convert fixed-to-mobile calls to mobile-to-mobile to reduce communication costs. Bypass monthly line rental fees charged by traditional telecommunication service providers.

Complete Business Communications

Available both in the cloud and on-prem, Yeastar business phone system offers companies of all sizes with a complete package for calls, video, messaging, integrations, and more, out of the box.

Full list of enterprise-grade features at no additional costs: IVR, queue, voicemail, ring group, and more.

Easy-to-use Linkus UC Clients for call, meet, chat, and message in one simple app.

Rich out-of-the-box integration with CRM, helpdesk, Microsoft Teams, and more 3rd-party business tools.

Bring your own SIP trunks, phones, and others with auto-provisioning support.

complete business communications

Related Products and Services


P-Series Phone System

Easy-first unified communications for businesses of all sizes.

S-Series VoIP PBX

Entry-level on-prem phone system for small businesses with modular designs.

Linkus UC Clients

Free UC softphone clients designed for Yeastar business phone system.

TG GSM Gateways

Offer GSM WCDMA / 4G LTE channels to line up PBX with celluar trunks.


Related Resources

Customer Stories

Italian Hotel Migrates to VoIP and Uses 4G Trunk as a Backup


Solution Highlight

Telephony Modules and Expansion Boards



Equip Your Mobile Workforce with Unified Communications


Contact us today to get more information!