TCP port 5269 must be open in order to chat with external contacts (Google Chat users, other Jabber clients, etc.)
HUD3's chat window displays all conversations with other users in individual tabbed windows. Within each tab, a number of icons present additional functionality like the ability to quickly call a user, send an SMS, or compose an email via your computer's default email application.
A description of each of the icons available from the chat window is listed below:
Open the Chat History window
Call the extension of the user you are currently chatting
Call the mobile phone of the user you are currently chatting
Send an SMS to the mobile phone of the user you are currently chatting
Send an email to the user you are currently chatting using your default email client