Advanced Wireshark SIP filters
When looking for SIP traffic in Wireshark, you can start with the Display Filter sip. Here are a couple more specific filters. To find a specific type of SIP packet: …
Set up BLF on Yealink Phone with Grandstream UCM
Yealink phones can have basic BLF functionality in conjuction with a Grandstream UCM server. In this case, I’m using a Yealink T41P and a Grandstream UCM6102.
How to Revert a 3CXPhone Update in the 3CX Dashboard
When you approve an update to 3CXPhone for Windows in the 3CX v15 server dashboard, the server will start pushing out the update the next time the users start 3CXPhone. …
PowerShell Script to Check and Disable SMBv1
SMBv1 is an old network protocol targeted by the now-infamous WannaCry virus. Although the issue exploited by WannaCry was patched in March 2017, SMBv1 was left enabled by default, leaving …
Re-Install WordPress
Let’s say you have a test install of WordPress 4.7.4 and you accidentally delete the database. Let’s say you have created an empty test database. Let’s say all your WordPress …
Juno SpeedBand Forces Bad Proxy
If you use locally-installed Juno for your email, you may have their “SpeedBand” technology that supposedly speeds up Internet browsing. Apparently it’s doing this with some kind of local cache …
Analyze a Windows Error Code
This is one of those things that I easily forget by the time I need it. Maybe putting it in a blog post will help. Assume you see error 2147942667 …
WordPress Notify Author on Comment
By default, WordPress does not notify the post author when they comment on their own post. They also don’t get notified after approving someone else’s comment on their post.
Distinctive Ringing for Internal Extensions with 3CX and Yealink
A customer using 3CX v.15 with Yealink T42S phones would like calls from internal extensions to have a distinctive ring.
April 2017 Monthly Rollup Breaks VB6 App
I maintain a client-server database app written in VB6 that uses ADO and COM+/DCOM. After installing the “April, 2017 Security Monthly Quality Rollup,” the VB6 app crashes in msado15.dll and …