#11 COS Wholesale Engine: The Orchestrator for Open Access & M&A-Driven Fiber Networks

As Open Access and wholesale fiber models take off, many operators are hitting the same wall: their legacy BSS/OSS stacks weren’t built for multi-ISP, multi-vendor, or M&A-heavy environments.

You may be:

• Running a wholesale/Open Access network with several ISPs
• Managing multiple brands under one umbrella
• Acquiring networks that each come with their own tech stack

In all these cases, you need a neutral orchestration layer that unifies operations, automation, and visibility across the entire ecosystem.
That’s why we built COS Wholesale Engine!

What Is COS Wholesale Engine?

COS Wholesale Engine is an API-first Open Access Network Orchestrator for operators who want to:

• Manage multiple ISPs on a single shared infrastructure
• Automate provisioning across different EMS/NMS vendors
• Standardize integrations to ISPs’ BSS/OSS and NOC systems
• Generate transparent, dispute-free wholesale billing

It becomes your normalization layer: infrastructure in, ISPs and systems out — all aligned on one operational model.

What It Does (At a Glance)

1. Single Source of Truth for Service Locations
The platform manages areas, addresses, service locations, and deliverability rules. ISP partners rely on this as the canonical reference when selling, provisioning, and supporting subscribers.

2. Zero-Touch Provisioning Across Multiple Vendors
Through EMS/NMS integrations, COS Wholesale Engine supports multi-vendor and multi-technology networks. You can:

• Operate several EMS platforms in parallel.
• Avoid rip-and-replace in M&A scenarios
• Keep operations automated even in heterogeneous networks

3. Shared Disruption & Ticketing Flows
Disruptions and tickets are designed to enable cross-organizational collaboration between the network operator and one or more ISPs. Everyone sees status, ownership, and next actions across organizational boundaries.

4. Standards-Oriented APIs for ISPs’ BSS/OSS
All data and logic are exposed in a standards-oriented REST API layer,  so ISPs can plug in their own:

• Billing systems

• CRMs

• Support and NOC tools

Extending or adapting the APIs requires minimal effort, making them suitable for both large and smaller ISPs.

5. Wholesale Billing That Just Works
Wholesale charges are calculated from live order activations and aggregated per ISP every month. That means:

• No “free riders”

• No guesswork or manual reconciliation

• A clear, auditable basis for every invoice

Who It’s For

• Open Access / Wholesale operators with fiber or fixed wireless infrastructure

• ISPs with M&A strategies or multiple brands that need a unifying operational layer

• Operators of multi-technology/vendor networks who want to standardize processes without standardizing hardware

Why Operators Choose It

Separation of Infrastructure and Customer Operations
Traditional telco stacks are vertically integrated. COS Wholesale Engine decouples infrastructure from customer-facing processes while keeping them tightly synchronized through APIs. That gives you a level of flexibility that’s hard to achieve with legacy systems.

Open Access / Wholesale Ready
Multiple ISPs can be invited to operate on the same infrastructure with full visibility and automation. This is a powerful lever for boosting take-rates in new builds and revitalizing stagnating markets with a multi-brand approach.

Built for Cross-Selling and M&A

With COS Wholesale Engine:

• Multiple brands can co-exist without data clashes or sync issues

• Acquired ISPs can keep their customer-facing tech stack while you unify operations centrally

• You can roll out multiple brands into any market to maximize take-rates

Faster Time-to-Market in M&A

Because most systems can remain intact, you can:

• Integrate acquired networks faster and cheaper

• Use COS Wholesale Engine as the bridge layer

• Consolidate BSS/OSS stacks only when (and if) it makes sense

Hardware-Agnostic Automation

The platform works with major vendors and multiple EMS/NMS platforms, helping you avoid vendor lock-in and enabling “rip-and-replace-free” mergers.

No More Wholesale Billing Disputes
Billing is derived from actual activations and live network status — creating clear, auditable invoicing that both operators and ISPs can trust.

How It Differs from COS Business Engine

• COS Business Engine includes the customer portal and marketplace for direct subscriber self-service, plus rich UIs for ISPs. It has extensive REST APIs but is not aligned to TM Forum standards.

• COS Wholesale Engine removes consumer UIs and goes API-first, based on global standards, while keeping the same operational backbone (provisioning, tickets, billing, etc.). This makes it particularly attractive for large Service Providers operating across several wholesale networks.

Want the Deep Dive?

This post is just the overview.

👉Learn more about Wholesale Engine or reach out to us here, and we'll set up a quick walkthrough.