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The ECG staff technical blog.

SHAKEN/STIR: Quick Insights from an FCC Proposal to Fight Robocalling

The FCC's Notice of Proposed Rulemaking gives helpful insight for Service Providers fighting robocalling and implementing SHAKEN/STIR.

Office. Home. Distributed. Effective.

How ECG maximizes effectiveness with a widely distributed workforce in a mixture of office and home environments.

SD-WAN for UCaaS Voice and Video Calling (Video)

At the Cloud Communications Alliance (CCA) Summit in Miami, opinions are strong about the critical features of SD-WAN and its importance for reliable voice and video.

"Would you like some Huddle space with that?" Five takeaways from Enterprise Connect 2019

Enterprise Connect 2019 focused on Small-room video systems and Cloud-hosted Contact Center platforms, with lots of other small bits in the orbit.

Cisco-BroadSoft Pushes BroadWorks Operators Toward Better Patching

Cisco's support site now aggressively warns BroadWorks operators when patches are missing.

How to perform a release-independent upgrade on BroadWorks Resource Servers

Release-independent BroadWorks Resource Servers In 2017, Cisco-BroadSoft announced that the Resource Servers on the BroadWorks platform would no longer follow the traditional release upgrade and patching model employed in the past. Instead, they would be upgraded as release-independent versions. Bug fixes, new features, and updates to components of server software are now included in these v...

What you need to know about STIR/SHAKEN in Seven Key Facts

Seven basic facts about the laws, the logic, and the technical implementation of STIR/SHAKEN to fight robocalling.

Holiday Training Special 2018!

New training specials from ECG lock in savings and give you the maximum flexibility for 2019.

Hysteresis Histrionics: Slow SIP Failover for Better Reliability

To provide reliable SIP failover -- do it slowly.

ECG: Engineering BroadWorks at US Department of Justice

MIAMI, FLORIDA - BroadSoft Connections 2018 - The US Department of Justice (DOJ) has now allowed ECG to publish information about the long-term relationship in which ECG, Inc. has been proudly supporting Federal law enforcement since 2007. This partnership is one of ECG's proudest contributions to reliable communications for critical, life-saving goals. The US DOJ approved release of the info...

ECGSA-18A: Evidence of Botnet-assisted SIP Attacks exploiting SIP-UA Configuration Files for traffic pumping fraud

Original Release Date: September 19, 2018. Updated 18:19 UTC Systems Affected SIP Service Providers and Enterprises Background & Description SIP based Enterprises and Service Providers (SIP Operators) that provide SIP UA configuration files (such as for Cisco, Polycom, Yealink, Mitel devices), but which do not authenticate those downloads effectively, are vulnerable to attack by...

BroadWorks Data Center Moves Made Easy (as possible)

Many BroadWorks service providers are migrating to new data centers and cloud hosting providers. This change brings many aspects into consideration, such as Rollback recovery options Managing BroadWorks Configurations Choosing Operating System versions To look more into the migration, Mark Lindsey spoke with ECG AMTS Ashley Lee for a Q&A. Ashley is an ECG Associate Member of Technical Sta...

Outage-Ready: Networks Ready for Anything

Network Outages are going to happen. The marketing department talks about Zero Outages -- and that's a great goal to have. But as the pragmatic engineering and operations team, you can prepare for outages to prevent them and to remediate instantly. Skip the Pretend Redundancy Detect and Triage Faults PCAP: Packet capture Ready for Remote Testing Logging Enabled & Synchronized Prepare the h...

Capturing Every Last Packet - On Linux

Capturing packets and not missing a lot of them can be hard. If you're monitoring TLS (including SIP over TLS), you need every single packet to be able to decode it. Many of us have a Linux server for doing our captures. There are some great tools like gulp and n2disk (among other great work on this subject from Luca Deri). But on a vanilla Linux machine, using whatever Ethernet interfaces you ...

Nine DNS Mistakes Voice & UC Providers Are Making

"DNS is one of those things that gets overlooked… You make your voice servers super-redundant, but you take it for granted that DNS will always work." — Fonality The Domain Name System (DNS) conventionally helps devices convert domain names, like VoIPCarrier.com, to IP addresses, like But in Voice and Unified Communication (UC) services, it serves an additional key role i...