Networking and VoIP, from the field
Guides, reviews and opinions from Chris Sherwood and the Crosstalk Solutions team, based on the networks and phone systems we design and support every day.
Latest posts
Solar Powered WiFi Part 3: Companion Guide
Wiring diagram and full parts list for a solar powered WiFi bridge: Renogy panel, Victron MPPT controller, battery, PoE and NanoStation M5s.
Let's Encrypt UniFi
How to install a free Let's Encrypt SSL certificate on a self-hosted UniFi Controller, with automatic renewal through cron.
15 Minute Hosted UniFi Controller Setup
Set up a hosted UniFi Controller on a Digital Ocean droplet in about 15 minutes: Ubuntu, SSH hardening, firewall, swap and the UniFi install.
Send Telemarketers to Hell
How to install the Blacklist Loser module in FreePBX and build an x666 ring group that blacklists telemarketers live and sends them to Lenny.
FreePBX Polycom Directory Automation
A bash script and cron job that build a FreePBX Polycom directory XML file from your extensions, so every Polycom phone's directory updates hourly.
HowTo: Stream Music on Hold in FreePBX
How to stream music on hold in FreePBX from an internet radio station using a streaming category, mpg123 and an inbound route.
HowTo: Pwn Telemarketers with Lenny
How to set up the Lenny telemarketer bot in FreePBX with an Asterisk custom context, Lenny sound files and a custom destination.
HOW TO: Install Webmin on FreePBX
How to install Webmin on FreePBX with the Webmin yum repo: add the repo file, import the GPG key, install and log in on port 10000.
How to Create a Wireless Bridge
How to create a point-to-point wireless bridge by unboxing and configuring a pair of Ubiquiti NanoStation Loco M2 radios.
Beware of Shady VoIP News
Why VoIP lead-generation articles like VoIP News can mislead businesses, and why not every network is ready for a VoIP phone system.
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