Interesting news from around the web for 2008-08-18:

Erlang traffic and call center / call centre calculatorsThis goes hand in hand with the voice bandwidth calculator provided by Cisco. If you have existing information regarding call volume, these calculators can help you determine the necessary bandwidth, call center agents, trunks, etc.
Voice Codec Bandwidth CalculatorThis is a [...]

Categories: Tech Messages

A special extended edition of Tech Messages for 2008-08-13 through 2008-08-15:

Use Hungarian notation to improve database design and application implementationI've tried this unsuccessfully in the past. Perhaps I'll try again…
Perl, Catalyst, and Cloud ComputingThere a lot of interesting links in here worth following.
Third Party VPN Connection May Cause Unintended VPN Interruption for Other Connected UsersApple [...]

Categories: Tech Messages

A special extended edition of Tech Messages for 2008-08-08 through 2008-08-11:

The not so secret origins of /usr/bin and /usr/sbin (and /sbin)I find the Unix file system to be one of the most difficult things to teach young system administrators. Here's a look into the history of /usr/bin and other directories.
Check Out Mox, Our Mock Object [...]

Categories: Tech Messages

A special extended edition of Tech Messages for 2008-08-06 through 2008-08-07:

Noise and jitter: Nemesis of digital communicationsI often get asked questions about latency and it's effect on VoIP. I always say, it's not the latency, it's the jitter! Here's an explanation.
Unable to Share Application in MeetingPlace Web 6.0 and MeetingPlace ExpressAll versions of Cisco Unified [...]

Categories: Tech Messages

A special extended edition of Tech Messages for 2008-07-30 through 2008-08-05:

Serial Converter May Malfunction When Utilized in RS485 Mode with a Dome-type Security CameraFor the converter to fail, it must be set up in the RS485 mode (not RS422) and connected to a chain of dome cameras. (CCO login required)
How to load large files safely [...]

Categories: Tech Messages