ISP, Fiber-to-the-Home (FTTH) & Enterprise Wireless Telecom Billing ERP: MikroTik/Huawei RADIUS Provisioning, GPON OLT Splitter GIS Mapping, and Automated M-Pesa Reconnection

Independent Internet Service Providers (ISPs), Fiber-to-the-Home (FTTH) estate networks, and B2B dedicated-bandwidth carriers are scaling rapidly across residential apartments and commercial business parks. Yet once subscriber counts cross 1,500 to 50,000 active ONUs/routers, manual MikroTik PPPoE secret management, unmapped fiber-optic splitter closures, and delayed M-Pesa payment reconciliation overwhelm NOC support teams and trigger subscriber churn.

At devManue, we engineer carrier-grade ISP, FTTH Fiber & Enterprise Telecom Billing and OSS/BSS ERP platforms that unify FreeRADIUS / MikroTik RouterOS / Huawei / Ubiquiti BNG provisioning, sub-3-second M-Pesa Paybill/BuyGoods C2B auto-reconnection, GPON OLT optical signal (dBm) telemetry, GIS fiber-core and FAT splitter-port mapping, and field-technician ONU serial tracking.

1. Eliminating the Three Revenue & Support Killers in ISP Operations

• Delayed M-Pesa Reconnection & Manual Account Extensions: When a home-fiber subscriber's link expires at 8:30 PM on a Friday and they pay via M-Pesa Paybill, waiting 20 minutes for a support agent to verify the SMS kills customer trust. Worse, giving NOC agents manual router access to "extend a customer for 2 days" enables off-book cash bribes and free internet accounts.
• Unmapped FAT Splitter Ports & Stolen Drop-Fiber Drums / ONUs: Field splicing technicians dispatched for a new installation routinely claim they used 180 meters of 2-core drop fiber for a 55-meter drop, or plug new subscribers into undocumented Fiber Access Terminal (FAT) splitter ports—leaving the ISP blind when a fiber cut occurs.
• Reactive LOS (Loss of Signal) Outages & High Optical Attenuation: Waiting for 40 customers on a PON port to call support before discovering a degraded optical budget (-28 dBm) or a dying PON SFP module floods your WhatsApp and call center lines.

2. Zero-Touch M-Pesa C2B Webhook to RADIUS CoA (Change of Authorization) Engine

Our telecom billing core processes incoming M-Pesa Daraja C2B callbacks idempotently, extends the subscriber's billing cycle to the exact second, issues a KRA eTIMS receipt, and dispatches a live RADIUS Change of Authorization (CoA / Packet of Disconnect) packet to the BNG router to restore full speed or move an expired subscriber out of the walled-garden captive portal in under 3 seconds:

from decimal import Decimal
from datetime import datetime, timedelta

class ISPRadiusAndMpesaProvisioningEngine:
    """
    Processes M-Pesa subscriber payments, calculates exact pro-rata or full-cycle
    bandwidth expiry, and generates RADIUS CoA / MikroTik Rate-Limit attributes.
    """
    @staticmethod
    def process_subscriber_topup(
        current_expiry_utc: datetime,
        payment_timestamp_utc: datetime,
        amount_paid_kes: Decimal,
        monthly_plan_price_kes: Decimal,
        download_mbps: int,
        upload_mbps: int,
        burst_mbps: int,
    ) -> dict:
        # Anchor renewal from current_expiry if still active, or from payment_timestamp if expired
        base_anchor = max(current_expiry_utc, payment_timestamp_utc)
        days_purchased = float(amount_paid_kes / monthly_plan_price_kes) * 30.0
        new_expiry_utc = base_anchor + timedelta(days=days_purchased)

        # Format MikroTik-Rate-Limit attribute: rx/tx burst-rx/burst-tx threshold time priority
        rate_limit_attr = (
            f"{upload_mbps}M/{download_mbps}M "
            f"{burst_mbps}M/{burst_mbps}M "
            f"{int(upload_mbps * 0.8)}M/{int(download_mbps * 0.8)}M 15/15 8"
        )
        return {
            "new_expiry_utc": new_expiry_utc.isoformat(),
            "radius_group": f"PLAN_{download_mbps}MBPS_ACTIVE",
            "mikrotik_rate_limit": rate_limit_attr,
            "send_coa_packet": True,
            "walled_garden_pool": None,
        }

3. GPON OLT Optical Power Monitoring & B2B Dedicated-Link SLA Portals

Beyond residential FTTH, the platform polls Huawei, ZTE, V-SOL, and Nokia OLTs via SNMP/SSH to graph each subscriber ONU's Rx/Tx dBm optical signal over time—automatically opening a proactive field ticket if attenuation drops below -26.5 dBm before the customer experiences packet loss. For corporate DIA (Dedicated Internet Access) clients, a white-label portal provides live smokeping latency graphs, bandwidth utilization charts, and automated monthly KRA eTIMS invoices.