Germany - Special telephone network services for business applications - Service contract for Mitel MX-ONE, Teams Voice and subsystems and control centre communication system Sinus MECC including software assurance

01

Stadtwerke Dusseldorf AG, a utility operator of critical infrastructure in Dusseldorf, Germany, is procuring a service contract for maintenance and support of its telephone communication systems: Mitel MX-ONE, Microsoft Teams telephony and the Sinus MECC control centre communication system, plus connected subsystems such as Mitel MiCC, OneBox, Rightfax, Asperi alarm server and Audiocodes SBCs. The infrastructure spans 19 sites with around 4500 users. Required services include 24/7 second and third level support, technical help desk, on-site support and training.

02

Description

03

11 open tenders right now

• Painting works - Coating of drinking water tank HB6 No deadline published
• Installation of metering devices - Metering point operation for electricity, gas, water and locking services No deadline published
• Cleaning services - Performance-based industrial cleaning at power plants of Stadtwerke Düsseldorf AG No deadline published

This buyer has no award history in this sector yet. Usual winners, Postal & telecommunications services - Germany

Based on 318 awards with a linked company profile over the last 2 years.

04

Change history

Every time an official source republished this notice with different content. We watch every source we index, including regional copies of the same notice.

1. 5 Aug 2026 Read before bidding
   • Scope and criteria: The description was expanded. Re-read it before you bid.

Follow this tender and we email you the moment it changes. Create account

06

Market context

Avg. open tender · Postal & telecommunications services

€17,579,151

952 open across Europe right now

Buyer track record on Aperlena

13 notices tracked · 2 awarded