Application Background

TETRA (Terrestrial Trunked Radio) is a set of standards developed by the European Telecommunications Standards Institute (ETSI) that describes the mobile communications infrastructure throughout Europe. This infrastructure is primarily intended to meet the mobile radio needs of public safety agencies such as the police and fire departments, utility companies and other businesses that provide voice and data communications services.

LTE (Long Term Evolution) is a long-term evolution of the Universal Mobile Telecommunications System (UMTS) technology standard established by the 3rd Generation Partnership Project (3GPP). The LTE network has the ability to provide a download rate of 100 Mbit/s and an upload rate of 50 Mbit/s. In the E-UTRA environment, delays below 5ms can be achieved with QOS technology. LTE can support communication needs in high-speed mobility, supporting multicast and broadcast streaming. Huawei provides eLTE broadband cluster solutions to enterprise customers based on leading wireless technologies, including professional broadband clusters, video surveillance, data acquisition, broadband data access, emergency communications and other professional services to help corporate customers improve operational efficiency, solve network deployment problems in harsh environments, to create a safe society.

DupliCALL’s wireless intercom voice and video system can perfectly support TETRA 800m trunking and Huawei eLTE broadband trunking, providing full recording and unified management of voice dispatching (such as point call, group call, broadcast, and emergency call) and visual dispatching (limited to Huawei eLTE).


Product Features and Advantages

  • Supports file export and mailing
  • AES 256-bit encryption
  • Supports additional call information provided by the associated CTI
  • Call type classification, point call, group call, broadcast
  • Flexible deployment, distributed deployment and centralized deployment
  • Third-party interface, recording control, file query, playback
  • Completed privilege management and control, distinguished management authority and operation authority
  • Simple parameter management interface, batch import of user ID and group ID
  • Voice + Video + Recorder Recording Same Screen Play (video only supported by eLTE)
  • Media type classification, voice, video, and screen recording records at a glance
  • Real-time system status monitoring and alarming, visual and controllable system operating status
  • Multiple recording queries (Talkgroup, ZoneID, UnitID, and SiteID)


Deployment Scenario Advantages

  • Traditional deployment Scenario


  • The challenges of the traditional deployment scenario:

Only supports group call recordings

Cannot search by interphone ID

Multiple points need to deploy multiple servers, high cost

Each call group needs one analog output basic unit

Most of the latest wireless intercom recording solutions do not provide the basic analog output unit




  • Industry-leading deployment plan


DupliCALL IP (SIP) -based deployment scenario


  • Scenario advantage

Centralized recording

Recording file encryption

Supports hybrid recording

Pure IP solution, no need for hardware

Supports recording point call, group call, broadcast, and emergency call

Obtains call information including call types (group calls, click calls, OTA encryption, emergency calls, etc.)


ELTE-based deployment scenario


  • Program advantage

Professional broadband cluster that supports visual dispatching

Video patching: video upload, video distribution, allowing on-site visualization

Supports voice group call, emergency call, override call, achieving timely distribution of police information

Group call delay <300ms, preemption delay <150ms, maximum 50M uplink and 100M downlink of bandwidth

Automatic voice and video recording for Huawei EP820 wireless handheld station

Video point call, video back trasfer

Voice point call, POC group call, multicast group call, POC broadcast, multicast broadcast, emergency call

Supports voice and video recording search and playback

Search and playback of voice and video recording

Caller / called number fuzzy query




Related Product List

811-0001-001, DCLog ES Recording Software

812-3701-001, DCLog 800M Integration, Recording License

815-9900-EL1, DCLog eLTE Voice Integration, Recording License

815-9800-EL1, DCLog eLTE Video Integration, Recording License

811-****-***, not all products are included, please contact us for details.