Skype multiple account

On the last years, the Skype version for Linux seems unchanged, without features or relevant upgrades (and with many bugs…thank you MS..).
For that, a stable procedure to call a secondary instance of your Skype for Linux program is:

$ skype --secondary &

It launch a secondary session, while the first is running.
If you use the notification icons, you can see the two icons of the two instances, and each instance has the status configuration indipendent from the other.