Business Support Systems

Rating

One of Cartesian’s main areas of expertise is in the rating of events. We understand the complexities of rating engines, tariff management, product propositions and bundling, the many different rating models used throughout the industry… we’ve even written our own rating engines for clients (but only when it made sense to do so).

We understand rating across many products, within retail, wholesale, and interconnect, fixed line or mobile; for some clients, we even provide a rating suspense management service. Optimising rating for our clients is a key Cartesian competence.

Billing

The most regular contact that a communications company should have with its customers is billing, so it’s essential that bills are accurate, timely, understandable, and adhere to whatever legal and regulatory frameworks are applicable. 

Having been involved in numerous start-ups, system selections and migrations, we at Cartesian understand the demands and needs of a billing system, such as the complexities of VAT changes & rounding, the effects of bill cycle schedules on cashflow and call centre management, and how to structure tiered volume discounting for marketing campaigns. 

For business-to-business communication providers, we also have experience with such challenges as account hierarchies. 

And for operators working outside the UK, we know about potential pitfalls such as local number masking, multi-currency billing, and bill localisation. 

We’ve learned all this through carrying out successful projects on a great variety of billing programmes across Europe and sometimes beyond.

Interconnect

Interconnect is a part of any telco business where considerable margins can be made and lost. We have worked with clients throughout EMEA, the Caribbean, South America and the Far East in helping them to optimize the way that they handle interconnect, both domestically and internationally.
As well as having managed and executed numerous system selections, implementations, migrations, and upgrades, we advise on operational best practice including suspense management and provide guidance on issues such as Least Cost Routing.