Cisco CTS-ISDNLINK-K9 ISDN Adapter 1920 Kbps Networking Telephony Equipment Telepresence
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CTS-ISDNLINK-K9 Cisco TelePresence ISDN Link, Encrypted Refurbished

Availability: In Stock
Part Number#: CTS-ISDNLINK-K9
List Price was: $5376.92
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Short Description:
CTS-ISDNLINK-K9 TelePresence ISDN Link, Encrypted Version ISDN Terminal Adapter 1920 Kbps | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Easy Deployment and Configuration

The CTS-ISDNLINK-K9 is a Cisco TelePresence ISDN Link designed for easy deployment and configuration. The device provides a simple and straightforward solution for organizations looking to establish encrypted ISDN connections for their telepresence and video conferencing systems. Easy deployment and configuration features of the CTS-ISDNLINK-K9 include:

  • Plug-and-play installation: The device can be quickly and easily installed and configured without the need for specialized technical expertise.
  • Intuitive web-based interface: The device features a web-based interface that makes it easy for administrators to manage and configure the device.
  • Automatic configuration: The device is designed to automatically detect and configure the optimal ISDN connection settings, reducing the need for manual configuration.
  • Remote management: The device can be remotely managed and monitored, providing administrators with the ability to manage their ISDN connections from a central location.

By providing easy deployment and configuration features, the CTS-ISDNLINK-K9 simplifies the process of establishing encrypted ISDN connections for telepresence and video conferencing systems. This helps organizations to quickly and easily establish high-quality video and audio connections, reducing the complexity and cost of their communication and collaboration solutions.

Remote Management and Monitoring Capabilities

The CTS-ISDNLINK-K9 Cisco TelePresence ISDN Link includes remote management and monitoring capabilities that allow administrators to manage and monitor their ISDN connections from a central location. This feature helps to simplify the administration and maintenance of the device and provides the following benefits:

  • Centralized management: The device can be managed and monitored from a single location, reducing the need for on-site maintenance and support.
  • Real-time monitoring: The device provides real-time monitoring and reporting of ISDN connections, allowing administrators to quickly identify and resolve issues.
  • Proactive management: The device can be configured to automatically alert administrators of potential issues, allowing them to take proactive steps to resolve problems before they affect end-users.
  • Flexible management options: The device supports multiple management options, including web-based interfaces, SNMP, and Telnet/SSH, providing administrators with the flexibility to manage and monitor the device in the way that best suits their needs.

By providing remote management and monitoring capabilities, the CTS-ISDNLINK-K9 helps organizations to reduce the complexity and cost of managing their ISDN connections. This makes it easier for organizations to ensure the reliability and performance of their telepresence and video conferencing systems, enabling high-quality video and audio connections for their users.

Dual-Link Redundancy for Maximum Uptime

The CTS-ISDNLINK-K9 Cisco TelePresence ISDN Link includes dual-link redundancy, a feature designed to maximize uptime for telepresence and video conferencing systems. Dual-link redundancy provides a redundant ISDN connection that can be used to automatically take over if the primary connection fails, ensuring continuous communication and collaboration. The benefits of dual-link redundancy include:

  • Increased availability: With dual-link redundancy, the device can automatically switch to the redundant link if the primary connection fails, reducing downtime and ensuring continuous communication.
  • Improved reliability: The redundant link provides a backup for the primary connection, increasing the reliability and stability of telepresence and video conferencing systems.
  • Reduced downtime: If a connection failure occurs, the device can automatically switch to the redundant link, reducing downtime and ensuring that communication and collaboration continue without interruption.
  • Easy management: The dual-link redundancy feature can be easily managed and monitored, providing administrators with the ability to ensure the availability and reliability of their ISDN connections.

By providing dual-link redundancy, the CTS-ISDNLINK-K9 helps organizations to increase the availability and reliability of their telepresence and video conferencing systems. This ensures that users can establish high-quality video and audio connections, even in the event of a failure, helping organizations to maintain continuous communication and collaboration.

General Information about this Cisco CTS-ISDNLINK-K9

  • Manufacturer : Cisco
  • Model Number or SKU# CTS-ISDNLINK-K9
  • Device Type ISDN terminal adapter
  • Form Factor External

Modem of ISDN terminal adapter

  • Connectivity Technology Wired
  • Max Transfer Rate 1920 Kbps
  • Digital Signaling Protocol H.239
  • Data Compression Protocol G.711, G.722, H.261, H.263, H.264, H.263++, G.722.1
  • Features Wall mountable

Expansion / Connectivity for TelePresence

  • Interfaces-4 x ISDN BRI ST - RJ-45
  • 1 x modem - ISDN PRI E1/T1 - RJ-45
  • 1 x network - RS-366/449//530/V.35 - RJ-45
  • 2 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45


  • Cables Included 1 x network cable
  • Included Accessories Power adapter


  • Voltage Required AC 100/230 V (50/60 Hz)

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Telephony technology deals with the interaction between two or parties that are physically distant. The interaction often involves electronic voice communication, videoconferencing, text messages, and faxing. Telephony has now evolved into the Internet sphere, allowing users to communicate via IP (Internet Protocol) networks. This is done at lower costs than traditional telephonic systems. IP telephonic systems can be found on a host of computing devices such as PCs, desktop computers, smartphones, and tablets.

Users need to invest in reliable, scalable, and robust telephony equipment to help meet enterprise needs. Every business needs to constantly communicate with employees, suppliers, and customers for improved business performance. There are a series of smart features of available telephony equipment that users can benefit from. These include real-time telephone calls, video conferencing, privacy protection, faxing, instant messaging, and more.

These high-end technologies are ideal for several organizations that require an improved approach to their telephony networking. That way, they can be sure of maximizing business mobility and continuity.

Several types of office phone systems are available to be employed by users. These phone systems run on different technology platforms. They can make use of VoIP, PBX, or analog. A user's telephone system choice will depend on the extensions, business applications, wiring, and budget. There are three major types that users can choose from, and they include KSU, PBX, and VoIP.

KSU (Key System Unit)

The Key System Unit is a multi-line telephony system that performs under a central control device. Present key system units now offer users with advanced features for businesses with up to 75 employees. These types of systems are often known as hybrid telephone systems. They incorporate the features of both key and PBX systems, offering improved efficiency. A great advantage of key systems is that the users can expand them as the business expands, and more employees are available.

PBX (Private Branch Exchange)

Larger businesses employ these types of telephony systems. They can accommodate well over 75 employees, and they have several advanced features standard them. These systems offer increased flexibility, which allows them to be used for complex operations in business environments. Their flexibility and customizable features ensure that they offer good value for money.

VoIP (Voice over IP)

This type is the latest telephonic system that allows businesses to connect in different locations. These locations can be within a locale or other places in the world. VoIP telephony equipment works by sending voice calls via the internet without the need for traditional telephones.

VoIP technology enables businesses to communicate with remote workers and branch offices. That is, users can place and receive calls anywhere in the world with the same number. Traditional VoIP technology allows companies to own and manage the telephony equipment themselves. On the other hand, the hosted VoIP system is controlled by a service provider.

Cloud-based telephony equipment manages and maintains a company's communication, relieving the IT department of such duties. That way, it frees up time and allows employees to focus on other important tasks.

Here, you can check more available conditions of your desired product CTS-ISDNLINK-K9 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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