https://urgentcomm.com/wp-content/themes/ucm_child/assets/images/logo/footer-new-logo.png
  • Home
  • News
  • Multimedia
    • Back
    • Multimedia
    • Video
    • Podcasts
    • Galleries
    • IWCE’s Video Showcase
    • Product Guides
  • Commentary
    • Back
    • Commentary
    • Urgent Matters
    • View From The Top
    • All Things IWCE
    • Legal Matters
  • Resources
    • Back
    • Resources
    • Webinars
    • White Papers
    • Reprints & Reuse
  • IWCE
    • Back
    • IWCE
    • Conference
    • Special Events
    • Exhibitor Listings
    • Premier Partners
    • Floor Plan
    • Exhibiting Information
    • Register for IWCE
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Terms of Service
    • Privacy Statement
    • Cookie Policy
  • Related Sites
    • Back
    • American City & County
    • IWCE
    • Light Reading
    • IOT World Today
    • Mission Critical Technologies
    • TU-Auto
  • In the field
    • Back
    • In the field
    • Broadband Push-to-X
    • Internet of Things
    • Project 25
    • Public-Safety Broadband/FirstNet
    • Virtual/Augmented Reality
    • Land Mobile Radio
    • Long Term Evolution (LTE)
    • Applications
    • Drones/Robots
    • IoT/Smart X
    • Software
    • Subscriber Devices
    • Video
  • Call Center/Command
    • Back
    • Call Center/Command
    • Artificial Intelligence
    • NG911
    • Alerting Systems
    • Analytics
    • Dispatch/Call-taking
    • Incident Command/Situational Awareness
    • Tracking, Monitoring & Control
  • Network Tech
    • Back
    • Network Tech
    • Interoperability
    • LMR 100
    • LMR 200
    • Backhaul
    • Deployables
    • Power
    • Tower & Site
    • Wireless Networks
    • Coverage/Interference
    • Security
    • System Design
    • System Installation
    • System Operation
    • Test & Measurement
  • Operations
    • Back
    • Operations
    • Critical Infrastructure
    • Enterprise
    • Federal Government/Military
    • Public Safety
    • State & Local Government
    • Training
  • Regulations
    • Back
    • Regulations
    • Narrowbanding
    • T-Band
    • Rebanding
    • TV White Spaces
    • None
    • Funding
    • Policy
    • Regional Coordination
    • Standards
  • Organizations
    • Back
    • Organizations
    • AASHTO
    • APCO
    • DHS
    • DMR Association
    • ETA
    • EWA
    • FCC
    • IWCE
    • NASEMSO
    • NATE
    • NXDN Forum
    • NENA
    • NIST/PSCR
    • NPSTC
    • NTIA/FirstNet
    • P25 TIG
    • TETRA + CCA
    • UTC
Urgent Communications
  • NEWSLETTER
  • Home
  • News
  • Multimedia
    • Back
    • Video
    • Podcasts
    • Omdia Crit Comms Circle Podcast
    • Galleries
    • IWCE’s Video Showcase
    • Product Guides
  • Commentary
    • Back
    • All Things IWCE
    • Urgent Matters
    • View From The Top
    • Legal Matters
  • Resources
    • Back
    • Webinars
    • White Papers
    • Reprints & Reuse
    • UC eZines
    • Sponsored content
  • IWCE
    • Back
    • Conference
    • Why Attend
    • Exhibitor Listing
    • Floor Plan
    • Exhibiting Information
    • Join the Event Mailing List
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Cookie Policy
    • Terms of Service
    • Privacy Statement
  • Related Sites
    • Back
    • American City & County
    • IWCE
    • Light Reading
    • IOT World Today
    • TU-Auto
  • newsletter
  • In the field
    • Back
    • Internet of Things
    • Broadband Push-to-X
    • Project 25
    • Public-Safety Broadband/FirstNet
    • Virtual/Augmented Reality
    • Land Mobile Radio
    • Long Term Evolution (LTE)
    • Applications
    • Drones/Robots
    • IoT/Smart X
    • Software
    • Subscriber Devices
    • Video
  • Call Center/Command
    • Back
    • Artificial Intelligence
    • NG911
    • Alerting Systems
    • Analytics
    • Dispatch/Call-taking
    • Incident Command/Situational Awareness
    • Tracking, Monitoring & Control
  • Network Tech
    • Back
    • Cybersecurity
    • Interoperability
    • LMR 100
    • LMR 200
    • Backhaul
    • Deployables
    • Power
    • Tower & Site
    • Wireless Networks
    • Coverage/Interference
    • Security
    • System Design
    • System Installation
    • System Operation
    • Test & Measurement
  • Operations
    • Back
    • Critical Infrastructure
    • Enterprise
    • Federal Government/Military
    • Public Safety
    • State & Local Government
    • Training
  • Regulations
    • Back
    • Narrowbanding
    • T-Band
    • Rebanding
    • TV White Spaces
    • None
    • Funding
    • Policy
    • Regional Coordination
    • Standards
  • Organizations
    • Back
    • AASHTO
    • APCO
    • DHS
    • DMR Association
    • ETA
    • EWA
    • FCC
    • IWCE
    • NASEMSO
    • NATE
    • NXDN Forum
    • NENA
    • NIST/PSCR
    • NPSTC
    • NTIA/FirstNet
    • P25 TIG
    • TETRA + CCA
    • UTC
acc.com

Project 25


EFJohnson announces multisite P25 system

EFJohnson announces multisite P25 system

EFJohnson introduced multisite capability to its Trunked IP25 Infrastructure System
  • Written by Urgent Communications Administrator
  • 1st September 2007

EFJohnson introduced multisite capability to its Trunked IP25 Infrastructure System featuring a fully distributive architecture that is designed to increase reliability and lower costs for first-responder agencies.

Demonstrated for the first time at the annual Association of Public-Safety Communications Officials (APCO) conference last month, the Project 25-compliant system is the first mission-critical infrastructure system designed from the beginning to work in an IP environment, said David Lukeson, EFJohnson’s senior product manager for infrastructure.

“Everybody else kind of adapted their existing infrastructure, which is not distributed, to an IP format,” Lukeson said. “We began with both the IP format and the distributed architecture at the same time.”

EFJohnson’s architecture allows peer-to-peer call setup, avoiding conflicts encountered in typical hierarchical systems and eliminating the central control device that can act as a single point of failure, Lukeson said.

In addition, the EFJohnson system uses multicast in a manner that does not unnecessarily stress an operator’s bandwidth capacity when talk groups include users from multiple sites, said Jeff Benshetler, EFJohnson’s manager of infrastructure development.

“Alternatives use a point-to-point protocol where, as additional sites participate in the call, the backhaul bandwidth for the sites increases,” Benshetler said. “In our architecture, there’s only a single voice stream required on the backhaul. That saves the customer money and it makes it possible to put higher density sites in places where high-bandwidth backhaul is not available.

“As the number of sites on the wide-area call increases, the advantages of our architecture increase.”

Another advantage of the distributed architecture is that failure of the site originating a call does not collapse the talk group. While a site failure means no communication with that particular site, other sites being used in the talk group can continue to communicate.

Similar resiliency is realized when the backhaul system fails, as was the case in many areas amid flooding in the wake of Hurricane Katrina. Without backhaul, alternative systems are unable to provide communications, even if the RF portion of the site is functional. With the EFJohnson system, a hardened site can provide communications within its coverage area when backhaul failures prevent communications with other sites in the network.

“Really, the vulnerability in a wide-area system is not individual sites in an emergency situation, it is the backhaul,” Benshetler said. “The infrastructure is certainly the most vulnerable — Katrina showed that, where you lost all of your telephone lines and you lost all your Internet connections.”

Although there is intelligence at each site and no central control switch, the EFJohnson IP25 multisite system will not be unruly for network administrators, Benshetler said.

“Our NMS [network management system] is particularly easy to use,” he said. “If you can buy a book on Amazon.com, you can operate our NMS.”

Tags: content Project 25

Most Recent


  • MCPTT interworking for critical communications
    The goal of mission-critical communication systems is to minimize the response time of first responders in emergency situations across several agencies. A dedicated push-to-talk button offers an efficient mechanism that simplifies the speaker-to-listener process to a minimum. This feature is useful when coordinating large group activities and to enable the instant flow of tactical status […]
  • LMR licensing activity increases slightly in 2022, but totals still near historical lows
    FCC licensing activity increased slightly in the public-safety and business/industrial sectors during 2022, although the numbers remain at levels that are relatively low from a historical perspective, according to information from the FCC’s online Universal Licensing System (ULS). Figures in the ULS database indicate that 2022 marked the first time in a decade that LMR […]
  • PSCR partners with FirstNet Authority for June public-safety-communications event
    Public Safety Communications Research (PSCR) recently announced its partnership with the FirstNet Authority to host 5×5: The Public Safety Innovation Summit, a new June event that is designed to be more “comprehensive” than PSCR’s past annual shareholder meeting, according to officials. Dereck Orr (pictured above at the last PSCR annual meeting), chief of the PSCR […]
  • NFPA certifies that L3Harris, Motorola Solutions devices meet latest fire standard
    L3Harris and Motorola Solutions recently announced that their P25 radios with LTE connectivity have been certified as meeting the National Fire Protection Association (NFPA) 1802 standard, which is considered to be the most stringent testing regime for public-safety devices serving the firefighting community. NFPA informed officials for both L3Harris and Motorola Solutions on Dec. 13 […]

Leave a comment Cancel reply

To leave a comment login with your Urgent Comms account:

Log in with your Urgent Comms account

Or alternatively provide your name, email address below:

Your email address will not be published. Required fields are marked *

Related Content

  • L3Harris unveils P25-LTE device that is designed to meet stringent new fire standard
  • Florida governor approves budget with no-bid P25 funding earmarked for L3Harris
  • Director of Michigan P25 network clarifies L3Harris role: 'No intentions to swap out any of the system'
  • Motorola Solutions CEO anticipates extension of Airwave contract in UK by end of year

Commentary


How 5G is making cities safer, smarter, and more efficient

26th January 2023

3GPP moves Release 18 freeze date to March 2024

18th January 2023

Do smart cities make safer cities?

  • 1
6th January 2023
view all

Events


UC Ezines


IWCE 2019 Wrap Up

13th May 2019
view all

Twitter


UrgentComm

Sign up to learn how to successfully manage your Motorola ASTRO® 25 System: spr.ly/60143j8fp https://t.co/XcxiUwzN27

1st February 2023
UrgentComm

Hytera parent cites financial health, but unable to make royalty payment to Motorola Solutions dlvr.it/ShlrlM

1st February 2023
UrgentComm

NATE: Todd Schlekeway highlights organization’s safety, legislative initiatives dlvr.it/ShljHj

1st February 2023
UrgentComm

Cybercrime ecosystem spawns lucrative underground Gig Economy dlvr.it/ShkKbf

31st January 2023
UrgentComm

FAA approves beyond-visual-line-of-sight (BVLOS) flights in North Dakota dlvr.it/ShgxHW

30th January 2023
UrgentComm

AT&T boasts of core ‘white box’ success in 5G, fiber push dlvr.it/Shgb4w

30th January 2023
UrgentComm

Spending American Rescue Plan Act funds: A primer for municipalities dlvr.it/ShgZ52

30th January 2023
UrgentComm

AT&T wireless growth keyed by FirstNet—now provides 24,000 agencies with 4.4 million connections dlvr.it/ShY5qH

27th January 2023

Newsletter

Sign up for UrgentComm’s newsletters to receive regular news and information updates about Communications and Technology.

Expert Commentary

Learn from experts about the latest technology in automation, machine-learning, big data and cybersecurity.

Business Media

Find the latest videos and media from the market leaders.

Media Kit and Advertising

Want to reach our digital and print audiences? Learn more here.

DISCOVER MORE FROM INFORMA TECH

  • American City & County
  • IWCE
  • Light Reading
  • IOT World Today
  • Mission Critical Technologies
  • TU-Auto

WORKING WITH US

  • About Us
  • Contact Us
  • Events
  • Careers

FOLLOW Urgent Comms ON SOCIAL

  • Privacy
  • CCPA: “Do Not Sell My Data”
  • Cookie Policy
  • Terms
Copyright © 2023 Informa PLC. Informa PLC is registered in England and Wales with company number 8860726 whose registered and Head office is 5 Howick Place, London, SW1P 1WG.