Second acquisition in twelve months: Savecall takes over landline customers from Bluestring

Trusted Advisor for IT & Telecommunications Sourcing

Savecall is consistently continuing on its growth path.

Following the takeover of Avaya’s carrier services in 2024, Savecall acquired the fixed network assets of Bluestring GmbH – a division of the listed TeleService Holding AG based in Munich – at the turn of the year 2025/26.

What this means

Over 240 business customers are thus switching to SAVECALL.

The transaction went quickly and smoothly

Initial talks began in November.
The signing followed just three weeks later.
The closing in January.
Savecall has been looking after customers since February.

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The interview on the acquisition of Bluestring

Bluestring – a permanent fixture in the German telco market

Bluestring has been one of the most established players in the German B2B telecommunications market for over two decades. As a Carrier Competence Center for system houses, the Munich-based company has implemented fixed network projects for medium-sized customers – from fibre optic connections and cloud telephony to international VPN solutions.

For existing Bluestring customers, the switch to Savecall means a broader product portfolio, additional expertise in areas such as SD-WAN, security and managed services – and a partner who has known the SME sector for over 25 years.

Strategically consistent – for both sides

For TeleService Holding AG, the transaction is part of a clear strategic realignment. In future, the company will concentrate entirely on mobile telephony solutions – including the self-developed mobile telephony management portal MSM, with which TeleService occupies a leading position in the German reseller market. The divestment of the fixed-line business creates focus, frees up capital and enables a more concentrated allocation of management resources.

It was crucial for TeleService that the long-standing customer relationships ended up in good hands. Savecall fulfilled this requirement – with a structured process, fast implementation and a seamless transition for all parties involved.

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A pattern that repeats itself

Savecall took over Avaya’s carrier services in the German SME segment back in 2024. The initial situation was similar: A large provider is strategically realigning itself and is looking for a reliable partner who will continue to support existing customers at a high level. Savecall delivered on this promise.

Two acquisitions in twelve months, both based on the same principle: the transaction must work out for all sides – for customers, sellers and Savecall. Targeted growth instead of size at any price.

Savecall as partner for M&A and succession planning

The telecommunications market is facing upheaval. New technologies, increasing competitive pressure and a generational change among many owners are fundamentally changing the industry. Savecall offers a tried and tested solution for entrepreneurs who want to place their business in the right hands – whether as part of a succession, restructuring or asset deal.

The Bluestring transaction underlines what characterizes Savecall: Speed in the process, reliability in dealing with customers and partners, and the operational ability to cleanly integrate acquired business units.