I've been checking out skype as an alternative to ventrilo because some guys on my guild where using linux, and skype was the only solution for them, but I was really surprised to find there was no real PTT support other than a mute mic hotkey.

Luckily I stumbled upon this great little program.

Quick Guide:
1. Start Skype as normally and login.
2. Download and unzip from the link below, if you're having trouble starting the program you should download and install the .net 2.0 framework or higher.
3. You may get a screen saying SkypePTT.exe wants to use Skype, click Allow access.
4. Call and press your hotkey to talk! (note u may have to click abit before talking because of the mute/unmute delay).

Updated Quick Guide First Run:
1) Click the download link below, then unrar to a folder.
2) Start SkypePTT and set your hotkey.
3) Make sure to allow the program access in Skype. (SkypePTT.exe wants to use Skype.)

Download Skype PTT 1.0 Final (2.5mb)

If it's failing to run try registering the skype dll file.

Click on Start

Type in cmd in Run

Then cd to the folder where the files are extracted ->

Type in: regsvr32 Skype4COM.dll