The Problem: An Ageing PBX Draining the Budget
When Rapid Freight Solutions contacted us in early 2025, their 45-seat ISDN PBX was costing R18 000 per month in line rental and call charges — before counting the hardware maintenance contract. The system was 11 years old, could not forward calls to mobile, and staff working remotely had no access to the company number.
Our Approach: Cloud PBX Migration in Three Phases
We migrated Rapid Freight Solutions to Clevertel's Cloud PBX over three weekends, with zero downtime during business hours:
- Phase 1 — Number porting: Their existing 011 number was ported to our SIP trunk within 5 business days.
- Phase 2 — Softphone rollout: Each agent received a softphone app on their laptop and mobile. No new hardware was purchased.
- Phase 3 — IVR and call-flow setup: We built a professional auto-attendant, department queues, and after-hours routing in one afternoon.
The Results After 30 Days
At the end of the first month the finance team ran the numbers:
- Monthly call spend dropped from R18 000 to R7 200 — a 60% reduction.
- Remote staff could now make and receive calls on the company number from anywhere in South Africa.
- Voicemail-to-email eliminated missed messages that previously required a physical phone check.
- The old hardware maintenance contract (R1 800/month) was cancelled entirely.
Why the Savings Are So Large
Traditional ISDN lines carry a fixed monthly rental per channel regardless of usage. VoIP calls are billed per second on SIP trunks, and inter-office calls between extensions are free. For a logistics company with high internal call volumes between warehouse, dispatch, and admin, this alone accounts for roughly 30% of the saving.
Is VoIP Right for Your Business?
If your business uses more than 5 phone lines, has staff who work remotely or across multiple sites, or is still paying for a hardware PBX maintenance contract, the answer is almost certainly yes. The typical payback period for a Clevertel Cloud PBX migration is under 90 days.
