Articles from our engineers
What we have learned fixing, moving and teaching voice, network and security systems. Written to be useful whether or not you ever call us.
Voice
The call that fails one time in twenty
Intermittent call failures are the hardest voice problems to fix. A method for finding the cause when a second attempt usually works.
Migration
Before you move your phone system to the cloud, count the fax machines
Cloud calling migrations rarely fail on users and phones. They fail on the things nobody listed. What to look for before you set a date.
Network and security
Why voice breaks when you replace the firewall
A firewall replacement that passes every security test can still degrade phone calls. The four places to look, and how to prevent it.
Network and security
Network segmentation for people who run phones
Segmenting a network without breaking voice: what phones need to reach, the rule most projects forget, and how to test before enforcing.
Network and security
What a network assessment should hand you
A network assessment is only as useful as what it leaves behind. The six things to expect, and how to tell a real finding from filler.
Training
Training that survives Monday morning
Why a classroom course often fails to change what a team can do, and how to design technical training that does.
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