For those of you wanting to dig deeper into this wonderful world of VoIP, I suggest you check out my book, VoIP Hacks, from O’Reilly Media. Here are a few of the great hacks you’ll learn:

- Prioritize packets to improve quality
- Sound like Darth Vader while you VoIP
- Kindly introduce telemarketers to Mr. Privacy
- Sniff out jittery calls with Ethereal
- Secretly record VoIP calls

All this, and 95 other fantastic hacks, are outlined in VoIP Hacks. Check it out!