I’m running FreePBX and sometimes need a telephone number for a special project. IPKall fits in perfectly.

Free Washington state phone number to your Internet phone.

Welcome to IPKall, the service that lets you receive FREE calls over the Internet from any phone, anywhere, any time!

FREE IP Calling with IPKall.

Here’s how I setup my FreePBX system:
1. Go to www.ipkall.com and sign up for a free number. Select/Use the following on the signup page:

Account type: IAX
User Name: <the 10 digit ipkall telephone number>
Proxy: <the IP or hostname of your freepbx server>/<the 10 digit ipkall telephone number>

Example:
User Name: 3065551212
Proxy: pbx1.mydomain.com/3065551212

2. On your freePBX server, create a new IAX trunk and use the following information. (Everything else can be left alone.)

TRUNK NAME:IPKALL
USER CONTEXT: <the 10 digit ipkall telephone number>
Remove the Secret line from the USER Details area.

3. On your freePBX server, create a new Inbound Route and use the following information. (Everything else can be left alone.)

Description: IPKALL
DID Number: <the 10 digit ipkall telephone number>
Set Destination: <Indicate where this DID should terminate>

4. Save and update the FreePBX configuration.

This is one device to keep an eye on. It will identify applications running on non standard ports and allow you to block/permit them.

In this Clear Choice, we found the Palo Alto Networks PA-4020 to be an innovative turn on the traditional firewall (see Is Palo Alto’s firewall a firewall or not?). By looking at application data streams, rather than TCP/IP port numbers, the PA-4020 is able to provide a finer-grained control over end-user Internet usage than has previously been available in any firewall. The PA-4020 also leverages this application knowledge to provide unprecedented (for a firewall, that is) levels of visibility into network traffic.

Palo Alto provides great visibility into network threats - Network World.

This article from InformationWeek shows why you should avoid cordless phones for sensitive converstations.

Passive radio eavesdropping is a low-budget, relatively safe way for potential attackers to scout out targets. Anyone in your organization using a wireless headset or cord-less phone is potentially broadcasting sensitive material.

Tech Tracker: Can Passive Radio Eavesdroppers Listen In On Your Company? — Wireless.