Hosted 3CX PABX, on-premise builds, or Yeastar local IP PBX — sized to your business and your network.
912 deploys 3CX hosted PABX in three business days, local Yeastar IP PBX in two, and biometric access systems in one. Linkus mobile and desktop extensions, SIP trunking, call recording, CRM integration, and the Safaricom SIP setup — all under one contract with a documented runbook.
What 912 Deploys
The specific 3CX capabilities we scope.
Product names identify technologies in scope. They do not by themselves imply partnership, authorization, certification, or a universal recommendation.
3CX Hosted PABX
Cloud-managed PBX with no on-site hardware footprint. Scalable, redundant via cloud infrastructure, and maintenance-free. Our default for businesses with reliable internet and remote workers.
Yeastar VOIP IP PBX
On-premise PBX supporting up to 20 extensions and 10 concurrent calls. FXS, FXO, ISDN, GSM, 3G, and 4G interfaces. Web management. Less internet-dependent — the right call for branch sites with patchy connectivity.
Linkus Desktop & Mobile App
Extends the PBX to desktop and mobile with VoIP, video conferencing, messaging, and presence. Avoids the need to ship a physical phone unit to every user.
Safaricom SIP + VLAN Tagging
SIP trunk configuration with Safaricom and VLAN tagging to isolate voice from data traffic. Critical for VoIP call quality on shared infrastructure.
Why 3CX
How the technology fits an operating decision.
The fit depends on the estate, licences, prerequisites, integrations, people, support responsibilities, and alternatives.
Up to 80% lower call costs
Replacing legacy PSTN with SIP-trunked VoIP routinely cuts call costs by 60–80% in our deployments. The savings pay for the PABX investment inside the first year for most mid-sized businesses.
One number, every branch, every device
Unified extensions across branches, mobile devices, and desk phones. Internal calls free. Central switchboard. The kind of unified communications that big-vendor PBX systems charge a fortune for — at SMB pricing.
Wi-Fi quality must be tested before deployment
Wireless IP phones fail silently if Wi-Fi coverage is weak. We verify signal strength at every extension location before shipping handsets. We refuse to ship installations that will fail — too many bad outcomes in the industry start there.
Engagement Model
How 912 deploys 3CX, step by step.
The cadence we follow on every 3CX engagement. Slots into the broader 912 six-phase engagement model — see How We Work for the full delivery cadence.
Step 01Assess internet, Wi-Fi & branch needs
Discovery covers internet bandwidth, Wi-Fi coverage maps, branch user counts, extension plans, and call-recording or compliance requirements. Output: deployment-model recommendation (hosted vs local).
Step 02Configure SIP, VLAN, and call flows
Safaricom SIP trunk provisioned, VLAN tagging set up, IVR / digital receptionist configured, call queues and skill-based routing built. Call flows tested before any user-facing cutover.
Step 03Deploy phones & apps
IP phones (typically Wi-Fi or executive desk phones) provisioned. Linkus apps deployed to desktop and mobile. Mobile extension testing across cellular and Wi-Fi networks.
Step 04Train admins & support
Three months of configuration support included for 912 deployments. Admin training on the management console, call-flow editing, and reporting.
Proof Points
Source-backed specifics, not vague claims.
These figures and terms are explicitly attributed in the review note below. Final commercial terms depend on the current vendor quote and the signed 912 scope.
Typical 3CX Hosted PABX deployment time
Local Yeastar IP PBX deployment time
Call-cost reduction range we deliver in the field
Standard commercial structure (balance on delivery)
Deployment patterns based on 3CX brochure work, a professional-services telephone proposal, a residential-property AMC, and banking-sector PABX materials. Annual licence and hosting fees are typically client-side; Safaricom airtime is separate from the PABX engagement.
Related 912 Services
The 912 service pages that lean on 3CX.
Each service brief includes the 3CX components, the broader engagement model, and the FAQs around scope, pricing, and support.
Scope your 3CX engagement in one call.
We’ll walk through your environment, recommend the right product set, and produce a written proposal you can hold us to.