Billing & subscribers
Billing EngineBasic & Premium

PPPoE and static IP billing, M-Pesa and RADIUS in one self-enforcing loop

Hotspot & Vouchers3% of collections

Voucher and M-Pesa hotspot access — users are free, we take 3% when you collect

CRMPremium

Leads pipeline, customer 360 and campaigns, next to the billing truth

MessagingBasic & Premium

Renewal reminders, receipts and outage notices — to exactly who they concern

Network operations
OLT/ONU ManagementPremium

Huawei, ZTE and VSOL OLTs and every ONU behind them, one console

ACS / TR-069Premium

Fleet-wide CPE control: WiFi, diagnostics and config over TR-069

Device ManagementPremium

Routers, switches and APs monitored — know before the subscriber calls

Fiber MappingPremium

The plant on a map — OLTs, splitters, ONUs — however big it grows

Back office & AI
InventoryPremium

Ledger-driven stock for ONTs, routers and drums — plus full procurement on Plus

AI AssistantPremium

Ask the platform questions in plain language, answered from live data

All ten modulesOne platform, two plans, priced per user

10 modules — Basic covers the billing core, Premium includes every one of them.

Explore products →
Smaller footprint
Estate & hotspot ISPBasic

Many subscribers, few ONUs, hotspot in the common areas

Home fiber / neighborhood WISPPremium

PPPoE to every home, one ONU per household

Larger footprint
Regional fiber operatorPremium

Many OLTs and ONUs, mixed vendors, one NOC

Multi-brand ISP groupPremium

Shared infrastructure, several brands

Different ISP, different billSee the plan and an example month for each archetype

Four kinds of ISP, each with the plan that fits and a month worked out on the published prices.

Compare solutions →
Guides
M-Pesa Daraja setup

STK Push and C2B on your own paybill

Billing, explained

Two plans, volume bands, the math

Onboarding an OLT vendor

Huawei, ZTE and VSOL side by side

Playbooks
Static IP to PPPoE

Converting a live network safely

The migration playbook

Off spreadsheets, onto CoreSync

Reducing disconnection complaints

Proactive renewal reminders

Case studies
Automating renewals at scale

An estate ISP, illustrative walkthrough

A multi-site fiber NOC

Topology and optical alerts in practice

FeaturedWhy ISPs switch to CoreSync

The migration playbook: moving off spreadsheets and manual M-Pesa reconciliation without a day of subscriber downtime. Most ISPs migrate in 1–2 days.

Read the migration playbook →

User manual / For your subscribers

Paying for your internet

Pay with M-Pesa from a payment link, the portal, Paybill or Till, and what to do if a payment doesn't show.

Subscribers
All guides
On this page

Ways to pay#

You can pay in three ways. Pick the one that is easiest for you.

WayHow
Payment linkTap the link in your provider's SMS. Your phone gets an M-Pesa prompt.
Customer portalSign in, press Renew or Pay now. Your phone gets an M-Pesa prompt.
Paybill or TillPay from the M-Pesa menu on your phone, like any other bill.

Every internet provider has its own paybill or till number. You find it in your provider's SMS messages. The numbers on this page are only examples.

Some reminder messages from your provider have a short payment link in them.

  1. Tap the link. A page opens with your name, your plan and the amount due.
  2. Check the M-Pesa phone number. You can change it to pay from another phone.
    The payment link page with the amount due, a phone number field and a Pay with M-Pesa button
  3. Press Pay with M-Pesa. The page says Check your phone.
  4. Enter your M-Pesa PIN on your phone. When the money arrives, the page says Payment received.
A link works for 7 days. After that the page says Link expired. Pay by Paybill instead, or ask your provider for a new link.
The payment link page saying the link is invalid or has expired

Pay from the customer portal#

  1. Sign in to the portal. See The customer portal.
  2. Press Renew or Pay now at the top of the page.
  3. Check the Phone number and the Amount (KES), then press Send prompt.
    The Pay by M-Pesa box in the customer portal
  4. Enter your M-Pesa PIN on your phone.

If the portal won't send the prompt, pay by Paybill instead. It always works.

Pay by Paybill#

  1. Open M-Pesa and choose Lipa na M-Pesa, then Pay Bill.
  2. For Business number, type your provider's paybill, for example 123456.
  3. For Account number, type your account number exactly, for example AML0042.
  4. Type the amount, enter your PIN and send.
The account number is what tells us it's you. Get it right and you can pay from any phone, even a friend's. Get it wrong and the money can't find your account.

Pay by Till#

Some providers use a Till instead. Choose Lipa na M-Pesa, then Buy Goods and Services, and type the till number.

A Till has no account number. We find you by your phone number. So pay from the phone number your provider has for you.

After you pay#

  • Your internet is renewed as soon as the money arrives. This usually takes less than a minute.
  • If you were cut off, your router connects again by itself within a few minutes.
  • You usually get an SMS saying the payment was received and the date your internet now runs to.
  • Paid early? No days are lost. The new period starts when the old one ends.
  • Paid after it ran out? The new period starts from the time you paid.

If you pay less than your plan price, you may get fewer days. If you pay more, the extra is usually kept for next time. It depends on your provider.

If your payment doesn't show#

  1. Wait 5 minutes. M-Pesa is sometimes slow.
  2. If the internet is still off, sign in to the portal and press Reconnect. Or switch your router off, wait 10 seconds and switch it on.
  3. Look at your M-Pesa SMS. Did you use the right paybill and the right account number? Keep the M-Pesa code, for example TJK4H7XQ2P.
  4. Tell your provider. In the portal, open Help, press Report a problem and choose Payment not reflected. Put the M-Pesa code in your message. Or call them with the code.
Don't pay again. Your money is not lost. Your provider can find it with the M-Pesa code and put it on your account.
For ISP staff: a payment with a wrong account number doesn't reach anyone. Find it under Payments → Unredeemed and match it to the customer there. See Payments and Troubleshooting.
Still stuck? Open the AI assistant in CoreSync and describe what you see, or email hello@coresyncisp.com. Screenshots on this page come from Amani Link, our demo ISP, so the names and numbers are made up.