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Notes for people who keep phone systems running

Practical writing on call analytics, legacy PBX life support, telecom costs, and the occasional war story. No growth-hacking listicles.

Call Abandonment Rate Is a Key Performance Indicator (KPI) Engineering

Call Abandonment Rate Is a Key Performance Indicator (KPI)

The revolutionary advent of information technology and new fields of science have changed our world quite dramatically compared to …

FEB 2019 · 3 MIN READ
How Cisco Call Manager Works - Part 1 Engineering

How Cisco Call Manager Works – Part 1

Overview of CUCM Cisco Unified communication (UC) integrates voice, video, data, and mobility products and applications with an …

FEB 2019 · 7 MIN READ
12 phone models not supported by CUCM. Engineering

12 Phone Models Not Supported by CUCM 12.0

Before the upgrade to CUCM 12.0, check the following phone models; if you use any of these deprecated phone models on an older …

FEB 2019 · 3 MIN READ
How create FreePBX Dashboard Engineering

How To Create FreePBX Dashboard In 10 Minutes

Updated for new FreePBX version I wrote a new article for the FreePBX dashboard by a Linux agent, and you can check it out first. …

JAN 2019 · 6 MIN READ
Unified Communication Clinic #1 (1) Engineering

How to fix Error SIP 488 Not Acceptable in Cisco Call Manager

Did you get this SIP error on your Cisco call manager? You already change all the codec, configured the transcoder, register with …

JAN 2019 · 3 MIN READ
Avaya Phone system Engineering

101 Free Video Training for Avaya unified communications – Part 4

If you’d like to know more about Avaya unified communications, we’re going to make it easy for you. We’ve put together a …

JAN 2019 · 3 MIN READ
Avaya Phone system Engineering

101 Free Video Training for Avaya unified communications – Part 3

If you’d like to know more about Avaya unified communications, we’re going to make it easy for you. We’ve put together a …

JAN 2019 · 3 MIN READ
Avaya Phone system Engineering

101 Free Video Training for Avaya unified communications – Part 2

If you’d like to know more about Avaya unified communications, we’re going to make it easy for you. We’ve put together a …

DEC 2018 · 2 MIN READ
PBXDom-Cisco-Partner Corporate

PBXDom Joins the Cisco Solution Partner Program

We’re excited to announce that PBXDom is now a member of the Cisco Solution Partner Program. That means our Cisco-approved …

DEC 2018 · < 1 MIN READ

See your own call data instead

See whether PBXDom supports your phone system, then choose guided setup, self-setup, or a product preview.