AVAYA TN1648

AVAYA TN556D

Brand: Avaya | SKU: TN556D

The TN556D is an Avaya Definity digital line circuit pack that provides 24 DCP (Digital Communications Protocol) ports for connecting digital voice terminals to the system. It supports reliable voice communication and is compatible with a range of Avaya digital telephones.

Refurbished Availability

Refurbished AVAYA TN556D units are available, offering a cost-effective alternative to new equipment. Each refurbished circuit pack undergoes rigorous testing and thorough quality assurance processes to ensure optimal performance and reliability. By choosing refurbished, you benefit from significant cost savings while maintaining high standards of quality and performance for your telecom infrastructure.

Expert Repair Service

Comtek provides expert repair services for the AVAYA TN556D and similar telecom modules. Our highly skilled engineers deliver fast turnaround times and support a wide range of vendors, including Cisco, Juniper, Nokia, and more. This expertise ensures minimal downtime and dependable service for network, telecoms, and critical infrastructure operators across diverse environments.

Global Presence

With state-of-the-art repair centres and offices in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek delivers responsive, local support on a global scale. Our international footprint ensures that customers benefit from efficient logistics, regional expertise, and outstanding customer satisfaction wherever they are located.

Committed to Sustainability

Comtek is dedicated to supporting the circular economy by extending the lifespan of telecom, network, and infrastructure equipment. Our refurbishment and repair services help reduce electronic waste and lower carbon emissions, delivering sustainable value for our customers and contributing to a greener planet.

For more information or to request a quote, please visit our contact form. All refurbished and repaired equipment comes with warranty coverage for peace of mind.