The Opera 240 IP integrates all communication needs of small enterprises for up to 20 users via a compact IP-platform, which can be configured with SIP- and ISDN trunks alike and makes available integrated voicemail, automatic voice recognition, FMC, a versatile Unified Communications-portal and other user- friendly applications for its internal subscribers. The highly scalable IP-system architecture with complete implementation of conventional technology (ISDN-trunks, UpN- and FXS-extensions) as well as the considerable degree of virtualized services through the compact processor platform require no functional media- gateways / codec-converter, thus enabling the integration of numerous applications without additional hardware for a beneficial price-performance ratio and guaranteeing a long-term investment protection..
Modular System

The capacity of the 19"-frame is assigned for up to 240 users, of which 8 physical analogue extensions are already inbuilt. Moreover, the system can incorporate up to 60 external lines.

Expansion Cards:

The basic system provides three slots that can be alternatively plugged with the following expansion modules:

  • S2M (PRA)-card for 30 ISDN-channels (up to 2 pluggable)
  • 4 S0 (BRA)-card for 8 ISDN-channels (up to 3 pluggable)
  • UpN-card for 8 system extensions (up to 3 pluggable)
  • a/b (FXS)-card for 8 analogue extensions (up to 3 pluggable)
System-Expansion Frame:

For enhancing the system capacity with UpN- and a/b-(FXS)-extensions, up to 9 further system expansion frames can be connected with another via LAN.

System Telephones
The two desktop IP-system telephones Operafone Executive und Operafone Professional provide a blue-illuminated 4-row displays and a context-intuitive user guidance. The Operafone Executive can be enhanced through a DSSS-module for adding 48 function keys and with a customary headset. The system telephones can be connected to the PBX within the company LAN or from remote sites via a broadband Internet-connection. Customary 2-wire extensions allow also the use of the UpN-system telephones Operafone Executive (identical build and functionality as the IP-version) and Operafone Standard (blue-illuminated 1-row display).
Interactive Caller Guidance (Auto-Attendant)
Up to 100 different announcements and menus can be played to a caller, in response to called numbers, the time, the selected language or other options. The caller then decides through his digit entries where he wants to be put through to.
Browser-based User-Portal
A flexible and easily handable administration user-interface for two-way updating between personal address book and Outlook or Gmail as well as handling the voicebox and general telephone settings.
Fixed Mobile Convergence - FMC
A user can secure his reachability via a single telephone number as well as a centralized mailbox to his IP-system telephone, Windows PC-Softphone or mobile telephone. Any WiFi-/ 3G- and SIP-compatible mobile device can be used as extension to the system via WiFi- or 3G-networks. Incoming calls are shown in the display of the registered mobile telephones. The subscriber sends his CLI independently from what device he initiates the call. The profile of the registered terminals can be selected either manually by the user or automatically via the last used telephone from which a call was made.
VoIP-Networking of Multiple Systems
Up to 100 Opera-systems can be connected to one network with a homogeneous telephone numbering plan. A central switchboard can take on calls from every connected system.
Upgrade Licences
  • IP-system telephones for registering via LAN / WAN
  • Recording and email-forwarding (WAV/MP3) of telephone calls via all system extensions
  • Voicemail-boxes and email-forwarding of recordings (WAV/MP3)
  • Music-on-Hold, downloadable 3 minutes (WAV/MP3)
  • Unified Communications-Portal for all extensions
  • Meet-Me Conference Room for up to 7 participants (internal/external) with 4 simultaneous conferences
  • Windows PC-system telephone (Softphone)
  • iPhone- & Android system clients (Softphone)
  • IP-Networking of up to 100 Opera-systems
  • SIP-extensions (maximum 224 extensions) for registering via WiFi- or 3G-networks
Special User Features (Excerpt)
  • Browser-based Unified Communications-Portal with a.o. the following features: presence status of users (9 definable status signals), programmable call transfer in context of the user presence status, import of Outlook-contacts into the address book, PC-dial assist out of the journal
  • Browser-supported switchboard with busy-lamp field of all registered extensions
  • Hot-Desking (via PIN activation of the individual extension with its current status on any system telephone)
  • One extension number for users with several terminals - presence through automatic call routing onto the last used IP-system telephone / Softphone / via WiFi registered 3G-mobile telephone
  • Meet-Me Conference Room for up to 7 participants (per conference)
  • Up to 2 simultaneous conferencesn
  • Networking of up to 100 Opera IP-systems
  • Dial-assist via TAPI for call setup a.o. with Microsoft Outlook
Service Optimization via Cloud-Based Server (Managed Services) for Supporting Maintenance Customers
  • Proven administration-tool for installed systems
  • Optimization of service revenue for value adding parties (e.g. system integrators)
  • Avoidance of unnecessary expenditure (e.g. long-distance on-site visits of engineers)
  • Synchronization of licence orders and actual provisioning
  • Automation and rationalization of processes
  • Remote-Management-Concept increases customer motivation for outsourcing managed services
  • Managed Services as future-orientated provision for supporting installed systems in line to prior agreed customer requirements, advanced service contracts
Automatic Detection of IP-System Telephones
Programming for registering IP-system telephones is not necessary. These are simply connected via the company LAN and will each receive an extension number allocated by the system.
System Capacity
  • 4-60 SIP-trunks (RFC3261)
  • ISDN-trunks: 4/12 S0 (BRA) or 1-2 S2M (PRA)
  • 8 - 232 IP-system telephone extensions
  • Up to 24 UpN-system telephone extensions per frame
  • Up to 224 SIP-extensions
  • 8-32 analogue a/b (FXS)-extensions per frame
  • 1 Ethernet-interface (RJ45)
  • 1 interface for door intercom system (RJ45)


With the available system architecture of the Opera IP-platform and its networking capabilities, up to 100 systems, irrespective of their location, can be joined together into one network whilst an optimum supply of managed services is provided via a cloud-based Management Server.

Typical Configuration

Corporate HQ
Professional IP
Executive IP
mit DSSS
Executive IP
Modem Router
Analogue Telephone
Professional IP
Executive IP
Modem Router
Modem Router
Executive IP
Windows Softphone
Executive IP
Modem Router
Professional IP

Service Optimization via Cloud-Based Services
Decentralized Managed Services

  • Services for auto-provisioning, configuration, administration and service allocation without on-site visits
  • Flexibly setable service-agents (e.g. system integrators) for order entries, maintenance, configuration changes, licence installationsn
  • Provisioning of SIP-trunks, downloading of new firmware (for system telephones and systems)
  • Reboot/saving/restoring of complete system configurations
  • Visual overview into the system status, firmware version, remotely-automated self-diagnosis
  • Network-based services (e.g. saving of user voicemail messages, user reports, logging reports)
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