Callisto Cruise Collection

Callisto Cruise - the HMS-Standard for Cisco-based cruise ships

Callisto Cruise – The Market-Leading UCC Application Platform for Cruise Ships

More than 10 major cruise lines and over 60 cruise ships rely on Callisto Cruise. The Callisto Cruise installations on the world's oceans range from small, exclusive expedition ships to the largest ships in the world. Crew & guest communication is the heart of Callisto Cruise's extensive application offering.

Innovative Guest & Crew Solutions

The keys to a sustainable, profitable, and responsible cruise business are fast innovation cycles, efficient processes, safety, and reliability on board. Professional internal communication and efficient, direct interaction with guests can make the difference between success and failure in a shipping company. CTModule’s Callisto Cruise Platform supports cruise lines in combining onboard communication regarding innovation, efficient processes, safety, and reliability. The versatility of the platform and its functionalities catapulted Callisto into a market-leader position for more than 20 years.

Calliso Cruise References

The Number 1 Collection for Cruise Ships

The Callisto Cruise platform with its smart architecture and green IT approach has enormous benefits for all cruise lines:

  • A single application platform with all needed applications and minimal IT resource consumption saves massively on investment and operating costs
  • The integration of all important infrastructures, such as Cisco UCM phone system, Shipboard Property Management System (SPMS), NTP server or master clock, various alarm systems, incl. SMCS and others, as well as the ability to connect further systems, allow the unified and process-oriented interaction and further development of guest and crew communication.
  • The Callisto Cruise Collection contains all “must-have” applications and more, which can be installed on the Callisto platform at runtime, thus creating investment security through the constantly possible modular expandability.
  • The Callisto Open Application Management (OAM) concept allows the upload of a customized application to the system at any time, which reflects the great flexibility and future-proofness of the platform.
  • In cooperation with a leading external company, the Callisto platform appliance has been fully tested and certified for security in order to guarantee the highest possible security for the customer.
  • The Callisto platform’s proven stability over many years with the corresponding HA supports guarantee the highest level of fail-safety

The Callisto Cruise Collection impresses with its comprehensive range of modules dedicated to the crew and guest communication, its flexible application, and its constant further development. The wide range of applications, openness, and flexibility, coupled with reliability and security, guarantee satisfied customers: cruise lines, crew members, and guests.



Callisto Cruise: Core Features

Callisto Cruise Headliners

This is why Callisto is the best choice for you


Over 50 UCC applications available on the Callisto Platform for any vertical market. The all-in-one approach helps end customers and partners to massively reduce the return on investment (ROI).


The ability to add, update, upgrade, or replace Modules or Applications at runtime with no service interruption, makes Callisto the world’s most flexible application platform for UCC solutions. Agile, future proof and secure with Callisto.


Callisto’s unique “Open Applications Management” concept enables customers to upload customized applications to the platform. Enterprises benefit from a fulfillment of their needs and System Integrators can serve customers individually.

Green IT

The Callisto platform can handle up to approx. 1,000 parallel calls with 2‑6 GB RAM, 2‑8 CPUs and 80 GB HD. Partners and end customers profit from a high performance at a lower resource usage, enabling environmental benefits.


Easy to install, configure, manage, use and maintain. Simplicity is a common thread throughout the whole Callisto system. Customers benefit from reduced overall product life cycle costs.


Flexibility in the selection of available modules and interoperability with various soft PBX systems. In addition to that, Callisto is suitable for on-site use, in various cloud or managed service models. We grow with your company.


High quality for products and services is in the DNA of our company. 98% of the installations are running error-free since several years, with more than 25,000 satisfied users and more than 15,000 flawless calls per day prove the stability of the Callisto platform. Customer satisfaction is our daily goal.

Problem Solver

The Callisto application platform has an answer to every UCC need in any vertical market. The variety of 50 applications, and the “OAM” concept for tailor-made applications, are providing a solution for every customer UCC problem.


We stand for professional service and best-in-class Support. Competent sales assistance, consulting, training, customer-specific developments and support, are the praised services by our customers. We have been a stable, reliable and professional partner for over 20 years.

Customer References

  • Chris Flowers
    Sr. Project Manager Professional Services

    NTT and CTModule’s teams have collaborated and continue to work
    with end-client Royal Caribbean to implement a Unified Communications solution onboard Royal Caribbean’s fleet of cruise ships. The teams worked together to successfully implement a Cisco Call Manager solution that integrates CTModule’s software onboard. Past and current successful projects include Royal Caribbean’s new-build ship implementations as well as older ships that require refurbishment and custom legacy integrations utilizing CTModule’s software. The solution scales from projects that have included 150 endpoint installations to larger ships with over 5,000 endpoints integrated.

  • Klaus Vollmer
    Director Maritime Solutions
    Lufthansa Industry Solutions

    We appreciate CTModule as a reliable and highly professional partner, with whom we have a very good cooperation for many years. CTModule convinces with its stable, innovative platform, which we have already implemented several times very successfully and to the highest satisfaction of our customers from the cruise industry. We are looking forward to continuing our proven cooperation in the years to come.

  • PG

    Paul Goldbeck
    Director IT / QM

    Callisto Cruise from CTModule is one of the most reliable systems on board. In the luxury segment of the EUROPA, not only the product, but also the support service has to be exceptional. This is 100% guaranteed with CTModule. As a Application Platform, Callisto Cruise takes over Communication and Guest Interaction tasks at EUROPA. In a partnership Hapag-Lloyd Cruises and CTModule, are constantly working on current topics and looking for new, innovative guest solutions and process simplifications. Overall, the use of Callisto Cruise at the EUROPA gives for Guests, Hapag-Lloyd Cruises and CTModule a WIN-WIN-WIN relationship.

Technology made to impress

Modules/Applications Over 50 modules/applications available
Supported UC platforms Cisco UCME, Cisco BE6K/7K, Cisco UCM, Cisco HCS, Cisco Webex
Presence integration Cisco CUPS integration and Callisto Presence
Scalability Unlimited
User configuration Manually and automatically from CUCM via AXL (Microsoft AD, LDAP/OpenLDAP systems), CSV files, or provisioning systems (e.g., KURMI via web services)
High availability Yes, incl. disaster recovery
Resource requirement “Small”

Callisto Appliance “Small” (up to 60 parallel calls):

  • 2 GB RAM
  • 2 CPUs (approx. 2 GHz)
  • 80 GB hard disk space
  • 1 network connection
Resource requirement “Medium”

Callisto Appliance “Medium” (up to 240 parallel calls):

  • 4 GB RAM
  • 4 CPUs (approx. 2 GHz)
  • 80 GB hard disk space
  • 1 network connection
Resource requirement “Large”

Callisto Appliance “Large” (240 parallel calls or more):

  • 6 GB RAM
  • 8 CPUs (approx. 2 GHz)
  • 80 GB hard disk space
  • 1 network connection
  • max. 960 parallel calls per appliance
System messages E-Mail, SNMP, Syslog
Security HTTPS, Secure Syslog, Secure LDAP, Secure SIP (TLS, SRTP), integrated Firewall, Single Sign-On (SAML) supported.
External Privacy and Security Assessment successfully passed
Operating system Appliance, hardened operating system
Database All SQL databases are part of the platform
Virtualization Delivered as image (OVA), installation in VMware ESX(i) environment

Contact us!

We are happy to assist you

Phone: +41 31 531 11 11