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!

Behind Today’s Door: A Fresh New Look at Business Engine 

As we continue our Advent Calendar journey, today’s reveal shines a spotlight on something many of you use every single day — the Business Engine interface. Over the past year, our team has delivered a series of thoughtful UI improvements designed to make your daily work smoother, faster, and more intuitive.

ISPs Make Open Access Magical

This season, we’re shining the spotlight on the amazing providers selling their services across our customers’ open access networks — bringing choice, speed, and stellar support to communities far and wide (from KPUD, LCPUD, City of Superior, and more).

Kitsap Public Utility District (KPUD) is lighting up more of Kitsap County, Washington (pop. ~280,000) with a community-owned, open-access fiber network—designed for choice and built for scale.

What’s new: With $6.6M in funding and resident payments, KPUD is adding 21 distribution nodes slated to be completed by early 2026, boosting capacity and lowering per-home connection costs. The open-access wholesale model lets multiple ISPs deliver service over the same network, increasing competition and affordability for residents and businesses.

However you say it, it’s still us—one team stretching from Umeå to the USA.

Over the years, customers, friends, and partners have laughed, and sometimes been delightfully confused,  by the many ways we pronounce “COS,” sometimes in the very same meeting. That’s part of the fun and part of who we are.

Hi fiber friends,

Today’s door opens to something special: a live, no-fluff webinar with our friends at VETRO on how integrated workflows turn plans into paying customers—faster.

Webinar: From Planning to Monetization — How Integrated Workflows Accelerate Broadband Success

Automated tax calculation with Avalara in COS Business Engine

If you’re doing end-user billing in COS Business Engine, taxes don’t have to be scary. Our new Avalara integration automatically calculates the correct taxes and fees on subscriber invoices based on the service location and the applicable tax rules. Avalara keeps jurisdictional rates up to date and handles returns and remittances, helping you stay compliant with less manual work.

The holidays are here — don’t miss the chance to create Christmas Promotions your subscribers can redeem right in checkout.

Turn “maybe later” into “I’m in.”

With Promotions in COS Business Engine, you can run real, trackable campaigns across your fiber footprint—welcome offers, seasonal deals, and bundles—without messy workarounds. Customers enter a code in the marketplace (or hit a link that pre-fills it), see the price update instantly, and complete the order with confidence. You get results you can measure.

Unwrap the 2025 COS Advent Calendar: Practical goodies for fiber teams, every day 🎁

It is the holiday season — and this year’s COS Advent Calendar is packed with hands-on treats your team can actually use. Every day until Christmas, we’ll drop a bite-size resource you can put to work right away: fun videos, real-world case studies, seasonal playbooks, whitepapers, and more. Kick off with a hello from Isak & Maren, then dive in!