Multisuns Telephony Interfaces DCRS-9900

Multisuns Telephony Interfaces DCRS-9900 CONFERENCE SYSTEM

All Standard Telephony Interfaces in One Box

While VoIP telephony is reinforcing their beachhead for becoming the first option of choice on telecommunication, analog and TDM are still in widespread use around the world.  Being acted as a leading voice logger developer, Multisuns have factored this market trend into the DCRS-9900 call logging system structure - analog, TDM and VoIP telephony within the same physical unit if required.

In addition to the voice capture method being transparent to users, channels can be flexibly configured to support all common telephony interfaces, including:

  • Analog trunks
  • Analog PBX extensions
  • Proprietary PBX digital extensions
  • Centrex
  • ISDN T1/E1 PRI
  • IP telephony
  • 2-way radio
  • Radio broadcasting
  • VoIP
  • Skype

System Architecture

Multisuns DCRS-9900 voice logger is based on Microsoft Windows, industry-standard PC hardware and Multisuns specifically engineered call recording software, enabling the call recording function to be easily configured to customers' specific requirements. Each DCRS-9900 voice logger starts from 8 channels and is expandable up to 256 channels. Multiple servers are free to group and network together, forming a system that ranges from a few hundreds up to several thousands of channels. The recording server further embraces maximum storage flexibility which voice recordings are stored in redundant hard drives (RAID-1) on-line and then automatically archived to DVD-RAM, DAT, NAS (Network-Attached Storage) as off-line data, and can be centralized to a central archiving storage server in remote location.

Desktop record-on-demand capability allows agents and supervisors to start and stop their recordings, or to tag recorded calls with important information.  Calls can be easily searched by date, time, duration, channel, agent, caller ID, DNIS, dialer number, call index number, reference text, private data and more.

How DCRS-9900 Works and Supports

DCRS-9900 is an unattended and around the clock recording server. It starts and stops recording by detecting the phone line status or the line's D-channel information. It manages the recordings stored in hard disk according to hard disk free space threshold or recording retention period. It provides users an access to search recordings at the system console with the criteria including date, time, duration, channel, agent, caller ID, DNIS, dialer number, call index number, reference text, private data and more. It has record-on-demand capability by which agents and supervisors can start and stop their recordings, or to tag recorded calls with important information at their own computer.

DCRS-9900 Generations

The DCRS-9900 voice logger was first released in early 1990's. Additional model names, such as DCRS-9900II, DCRS-9900III, DCRS-9900III-NE+, DCRS VoIP, DCRS-9900 VoIP, DCRS-9900 v5.0, were invented sequentially along with technology change, hardware enhancement and software upgrade, attempting to identify product generation.

Use and Benefit

Enterprises may be in need of call recording in a number of different situations:

  • When calls represent valuable agreements.
  • When the quality of telephone interactions must be monitored.
  • When security issues need to be considered.

DCRS-9900 voice logger is an excellent choice under following considerations:

  • Analog, digita, VoIP and radio, especially in one box
  • Archive media and compression techniques
  • Connectivity and compatibility
  • LAN/WAN/Internet operation
  • Quality, reliability and flexibility
  • Capacity and expandibility
  • Search and replay
  • Security and integration
  • Service and support

And DCRS-9900 can help assure to:

  • Manage risk and meet regulatory standards
  • Reduce staff turnover and increase brand recognition
  • Yield additional revenue from finite customer base (while lowering costs)
  • Upsell/cross-sell successfully


DCRS-9900 Voice Logger Key Features

Professional 24-hour Unattended Voice Logging for Phone and Radio
DCRS-9900 voice logger is the compact, reliable and entirely self-contained solution for recording, archiving, searching and replaying important phone and/or radio communications.

Record All Standard Telephony Interfaces and Radio
Record from any audio source received from Central Office, PBX extension, VoIP, Skype, 2-way / broadcast radio, intercom, microphone and more.

Fully Scalable Voice Logging Server System
Each DCRS-9900 voice logging unit can be a mixed analog, digital, VoIP and radio recording solution with maximum of 256 channels.  If the unit capacity is not fully occupied, number of channel can be increased simply by adding extra recording cards.

Channel-Definable Recording
Record start and stop (depending on your telephony interface) can be by voltage detection, VOX detection, 24hr continuous, D-channel rule based recording, and record-on-demand (software or DTMF code control).

Abundant and Eye-catching Channel Information
The status of all available channels including idle, voice recording in progress, voice recording duration, idle overtime and record overtime can be identified in a blink.

High Capacity On-line Storage and Flexible Archive
The system stores up to thousands of hours of calls on local RAID-1 HDD. It also automatically archives calls at pre-set intervals to inexpensive DVD disc, DAT tape, disk array, or via your network to a NAS or other networked hard drive.

User Rights and Groups User-Definable
User profiles and access permissions are supported. Each DCRS-9900 voice logger allows the administrator to add a new user, to delete a user, to assign users to a group, or to configure user right using templates.  Each user has its own profile enabling the administrator to set up access permissions in per user basic, e.g. only own calls, or calls of specific channels or groups.

Readily Available Live Call Monitoring and Replay Access
Monitoring ongoing conversation in live with simple operation on system console is a standard feature of DCRS-9900. Searching and replaying archives from local on-line storage device, local backup storage device and remote backup device are standard features too. In addition, all these operations can be archived via DCRS Client – the Windows PC software available for installation on as many user's desktop/notebook PCs as required.

Intelligent Voice Archive Locator and Player
Voice archives can be searched with multiple search options including date, time, duration, channel, agent, caller ID, DNIS, dialer number, call index number and they can be played in per channel basis, or up to 8-channel selection, via multimedia speaker or earphones.

Voice Replay and System Configuration Are Simple and Easy
The "Play" menu allows channel users and the administrator to enjoy supported sound reproduction functions at any time needed and the "System" and "DVD/DAT" menus allow the administrator to administrate the system quickly and comfortably. Playback controls include play, pause, stop, fast-forward, fast-backward, partial loop play, and more.

Selective Auto Deleting
Calls (speech audio) and calls-related information (database data) can be automatically deleted basing on retention period or free space threshold of on-line storage. Important calls can be marked for permanent storage.  Calls and calls-related information are administered individually so calls-related information are kept even if calls were already deleted from on-line storage device.

Call Statistic
Statistics feature allows users for viewing of data for analysis and exportable to Excel format (optional).

Reliable and Fault Tolerant
DCRS-9900 makes use of top-notch industrial-grade PC, offering superior reliability. Hot-swap dual power supply, cooling fan and RAID-1 hard disk may be optioned, to provide an additional safeguard against unexpected events.

Web Browser-based and Windows-based PC Client Supported
Live call monitor, search and replay functions may be performed from convenience of the DCRS Web Browser-based Client running thru Internet Explorer or the Windows-based DCRS Client running under Windows 2K/XP. Copying and converting call recordings to .mp3 or .wav formats are also readily available. For system safety, system configuration and advanced user function are performed only from the Windows-based DCRS Client.

CTI Integration
The Multisuns exclusively developed "Open Architecture Programming Interface" (OAPI) software package is available, allowing system integrators to easily and quickly integrate DCRS to the user's PBX or CRM system.

Full Compatibility with Database Center and Central Archiving
With the flexibility of integrating with Database Center and Central Archiving, DCRS-9900 is ideal for the enterprises and government departments who have multiple branches in satellite locations seeking to centralize administration.




Audio Input Interface

  • Analog telephony: analog trunk (POTS) and PBX extension
  • PBX digital telephony: digital extension (2-wire and 4-wire) from all major PBXs
  • Digital (TDM) telephony: ISDN T1/E1 PRI, ISDN BRI, ISDN Q-Sig
  • VoIP telephony: VoIP from all major PBXs and Skype
  • Radio: 2-wire audio

Channel Capacity (Voice channel per chassis)

  • 8 – 256 channels

Call-related Information Database

  • MDB (standard) or MS-SQL (optional)

Recording Search Criteria

Calls can be searched by any combination of following criteria:

  • Date and time
  • Channel
  • Extention/trunk number
  • Inbound/outbound phone number
  • Call duration
  • Call direction (incoming/outgoing)
  • Customer ID
  • Name
  • Agent ID
  • Department ID
  • Group ID
  • Remark field


  • Standard play (play, stop, pause, fast backward, fast forward, next, previous)
  • Partial loop play
  • Volume adjustment / Auto Volume Control / Noise Cancel
  • Multi-channel play

User Rights

  • Full freedom to add/delete users and groups
  • User / group profiles with assignable restructions
  • Per user based access permissions, including which channels allowable for live call monitoring, playback and recording format conversion, e.g. only own calls, or calls of specific channels or groups

System Fail-safe Features

  • RAID-1 (standard)
  • Dual backup devices (optional)
  • Hot-swap RAID-1 (optional)
  • Dual hot-swap power supplies and fans (optional)

Fault Notification

  • Email notification
  • Telephone dial-up notification (optional)
  • RAID-1 error email notification (optional)
  • Error message master database system (optional)
  • System shutdown monitoring and real-time report system (optional)


  • On-line: RAID-1 HDD
  • Off-line (Backup): DVD-RAM, DAT, USB-HDD, RAID-5 or NAS

Voice Recording

  • Full recording
  • Schedule recording
  • Record on-demand

Live Call Monitoring

  • Real-time monitoring
  • Circular monitoring
  • Play during record

Sound Replay

  • Local speaker
  • DCRS Client / DCRS Web Browser-based Client
  • Telephone (optional)


  • Login name and password authentication
  • Auto logout
  • Audit trail (optional)
  • Keyboard soft lock (optional)

Operating System

  • Microsoft Win2K, Win XP, or Win 2003

Recording Compression Format

  • G.711
  • OKI-ADPCM/32Kbps
  • OKI-ADPCM/24Kbps
  • DVI-ADPCM/32Kbps
  • DVI-ADPCM/24Kbps
  • MS-GSM
  • G.729a
  • G.723.1
  • G.726

Chassis Dimensions

  • 4U rack-mount 14-slot: 482 mm x 177 mm x 452 mm
  • 4U rack-mount 20-slot: 482 mm x 177 mm x 657 mm