Ouroboros Telecom
2G to 5G

Printed scratch cards must be produced, insured, stored, transported, and protected from theft before a single unit of credit is sold. The Ouroboros VOMS turns your distribution network into a fully electronic one: wholesalers and retailers sell credit and e-vouchers from their own mobile.

AMTP · VOMS
DistributionE-vouchers · voucherless credit
NetworksReseller to reseller (R2R) · reseller to subscriber (R2S)
Reseller accessUSSD, SMS, Web
Billing interfacesUCIP, Diameter, SOAP, proprietary
NotificationsConfirmation SMS to subscriber and reseller
DeploymentVMware, KVM, Docker, Kubernetes
0
printed cards
5
rights levels
USSD · SMS · Web
reseller access
1 min
default correction window
00The problem

In prepaid markets, recharge is the revenue. Yet most of it still depends on physical cards. Every card is printed, shipped, stored, insured, and handed from wholesaler to retailer before it reaches the subscriber. Stock runs out at the wrong place. Retailers carry valuable stock and become targets for theft. Only the face values that were printed can be sold.

The operator also loses visibility. Once cards leave the warehouse, nobody knows which reseller sold what, when, or to whom, until the voucher is finally scratched.

01How it works

VOMScore
Wholesaler / retailerUSSD, SMS, Web
VOMSstock and transactions
Billing / OCSUCIP, Diameter, SOAP
SMSCconfirmation SMS
01 / 03

Resellers hold electronic stock

The operator declares wholesalers, distributors and retailers, and allocates them either an amount of credit (voucherless) or a quantity of electronic vouchers (e-vouchers). Each reseller sells to subscribers or to other resellers below them.

02 / 03

Distribution and retail networks

In the distribution network (reseller to reseller), wholesalers, distributors and retailers exchange credit or e-vouchers against money. In the retail network (reseller to subscriber), the reseller transfers credit or an e-voucher to the subscriber's account on the billing platform. A single USSD code or SMS number is enough; transfers are secured with non-trivial service codes.

03 / 03

Secured transaction and credit delivery

When a reseller sells a recharge, the platform checks the reseller's stock, opens a transaction, and debits the reseller. After a configurable delay during which the reseller can correct a mistake, the credit is sent to the billing platform over UCIP, Diameter, SOAP or a proprietary interface. The subscriber receives the amount plus any bonus attached to the voucher type or credit tier, and both parties receive a confirmation SMS with the transaction number and the new balance.

Reference architecture
Radial architecture diagram of the Ouroboros VOMS. Wholesalers and retailers reach it over USSD through the USSD Gateway, over SMS through the SMSC and over the Web; the operator manages it from the intranet. The VOMS sends the credit sold to the billing platform or OCS over UCIP, Diameter or SOAP, and confirmation SMS go to the subscriber and the reseller.

VOMS — electronic distribution of prepaid credit

02Use cases

Scratch-card replacement, free face values, bonus plans, reseller hierarchy, secured field sales — one electronic distribution network.

01

Replace scratch cards

A prepaid operator moves its distribution to e-vouchers and voucherless credit. Printing, transport and storage costs disappear; resellers restock instantly from their mobile.

02

Any face value

In credit mode, a reseller sells exactly the amount the subscriber asks for. No unsold denominations, no lost sale because a card value is out of stock.

03

Bonus and promotional plans

E-voucher characteristics and bonus plans are fully configurable: extra minutes, SMS, or a percentage bonus per voucher type or credit tier.

04

Hierarchical reseller network

Wholesalers create and manage their own retailers over the Web, USSD or SMS, set the number of lines per reseller, and decide who may redistribute.

05

Secured field sales

Each reseller line is protected by its own access code. Lines not declared for a reseller are refused, and three wrong codes block the line.

Legos

We've selected Ouroboros because it was the best company capable of fulfilling our need for a scalable and virtualised full MVNO platform. Moreover, the Ouroboros team is pragmatic, flexible and responsive.

Pascal Prot

CEO-CTO · Legos

03Specifications

Function
Voucher management and electronic distribution of prepaid credit
Distribution modes
E-vouchers, voucherless credit
Networks
Reseller to reseller (R2R), reseller to subscriber (R2S)
Reseller access
USSD, SMS, Web
Rights levels
Administrator, operator, wholesaler, retailer, subscriber
Reseller self-care
Balance, line and reseller block/unblock, creation, deletion, access code change, interactive USSD menu
Billing interfaces
UCIP, Diameter, SOAP, proprietary protocols
Notifications
Confirmation SMS to subscriber and reseller
Correction window
Configurable delay before the credit is committed (one minute by default)
Security
Per-line access codes, declared lines only, blocking after wrong codes
IP support
IPv4, IPv6
Virtualisation
VMware, KVM, Docker, Kubernetes
Availability
99.999%
Business model
OPEX rental · CAPEX licence
04Inside the platform

01

Five rights levels

Administrators manage the database; operators credit accounts, create wholesalers and retailers, and resolve disputes; wholesalers transfer credit and manage their subordinates; retailers transfer credit; subscribers receive it. Each actor sees exactly what they need, from the operator's intranet down to the street retailer.

02

E-vouchers and voucherless credit

Resellers hold stock as electronic vouchers or as a credit amount. Operators choose per channel between fixed denominations and free amounts.

03

Correction window

The reseller can correct a transaction during a configurable delay before the credit is committed. Typing mistakes on a subscriber number no longer become customer service disputes.

04

Reseller self-care over USSD

Resellers check their balance, block a stolen line, create sub-resellers, or change their access code from any handset. The distribution network manages itself without calls to the operator.

05

Independent from billing

The resale system runs apart from the billing platform and only sends the final credit. Distribution traffic does not load the billing system.

06

Any billing platform

Credit is delivered over UCIP, Diameter, SOAP, or proprietary interfaces. The VOMS works with the Ouroboros OCS or with an existing third-party IN.

07

IPv4, IPv6 and dual-stack

Every interface runs over IPv4, IPv6 or both. The element fits an IPv6 core or a mixed network without a separate configuration.

05Why Ouroboros

Electronic distribution brings economic, logistical and environmental gains: fewer printed vouchers, no insurance or security for stock in transit, immediate restocking, and safer resellers who no longer carry valuable cards. Any recharge value can be sold.

The Ouroboros VOMS runs on the same AMTP platform as the USSD Gateway, SMSC and OCS, so the full recharge chain, from the reseller's USSD request to the confirmation SMS and the balance update, comes from one vendor.

OPEX rental is available, so operators can start electronic distribution without a capital programme.

Ouroboros Telecom

Tell us how your prepaid credit is distributed today, how many resellers you work with, and which billing platform you run. We'll propose an electronic distribution plan, on OPEX or CAPEX.