Short answer
Business voice minutes are the call time your business uses to call the public phone network from a VoIP platform, SIP trunk or PBX. FirstNet sells them prepaid or postpaid.
In detail: What are business voice minutes and their uses
The PBX, cloud phone system or SIP trunk is the platform your calls start from; the minutes are the calling itself. FirstNet carries the calls over its own ICASA-licensed voice network. Calls route to Telkom, Vodacom, MTN, Cell C and other licensees through direct interconnects, with multiple upstream interconnects for resilience and best-path routing.
Where the minutes are used:
- SIP trunks connected to an on-premises or cloud-hosted PBX.
- Hosted PBX and cloud phone systems, including FirstNet Managed Cloud PBX.
- Contact centres and BPOs handling large inbound and outbound volumes.
- Resellers and IT service providers building their own VoIP, PBX or UCaaS offering.
- International calling, with destination-specific routing and pricing.
How you can buy them:
- Pay-as-you-go minutes with no long-term commitment, suited to SMBs.
- Tiered volume discounts for growing businesses.
- Committed monthly bundles, suited to enterprises and resellers with steady volumes.
- Specialised international routes for global call termination.
On FirstNet SIP Trunks, minutes come on a voice plan: Voice Bundles with a fixed number of inclusive minutes, or Voice Rate Options with per-minute rates and a custom rate sheet on request. Billing is per second, so you pay for the time actually used rather than rounded-up minutes. That matters most for businesses that make many short calls.
Pricing depends on traffic volume, destination mix and routing requirements. Local geographic, mobile, international and premium-rate destinations are rated differently, so FirstNet prepares a customised rate card from your call profile rather than quoting a generic price list.
Minutes are separate from capacity. On SIP trunks, channels are sized to your peak concurrent calls rather than headcount and are a monthly operating cost on 12, 24 or 36-month terms, so your total voice cost is the channels plus the calls on your plan.
Getting started takes three steps: connect your PBX, VoIP platform or SIP trunk to FirstNet, activate your plan, then start calling with real-time monitoring and usage controls in place. A dashboard tracks consumption, rate classes, call patterns and cost forecasts, and the platform supports five users or five thousand without architectural changes.
Fraud controls, including anomaly detection, destination blocking and spending controls, help protect you against unexpected call charges. Resellers and service providers can buy bulk minutes with white-label or API-based integration through the FirstNet reseller programme.