How to conference call in Google Talk
Open up a
copy of google talk on all computers with which you wish to conference. After
one copy
is opened make a new shortcut for google talk but at the end of it add
/nomutex. If you installed it to the default folder then your shortcut should
read "C:\Program Files\Google\Google Talk\googletalk.exe" /nomutex.
Open 2 instances of the software on every user’s computer. After this start a
chain: User 1 should connect on one instance to user 2. User 2 will connect on
his second instance to user 3. User 3 will connect using his second instance
back to user 1. With this chain everyone is connected to everyone.
Possible
problems: Google will try to connect you with others on the same instance. To
fix this just open a new instance. It seems that google will try to take calls
on the newest IM client.
Note: You
can also make a conference call with more people, just have need to have one
less instance than the amount of people that exist.
courtesy : lpahome