dialog-info

hi,

the homepage says "SIP dialog-info notifications: they allow displaying 
notifications of incoming calls in the roster, and being informed of 
incoming calls reaching your contacts (if the server supports it, e.g. 
Ekiga.net, Kamailio and Asterisk do) ".

To receive notifications with dialog-info ekiga have to subscribe for 
event: dialog, right ? But it's only subscribing for event: presence.
How can i get dialog-infos ?

Is ekiga capable of performing a call pickup after receiving the 
dialog-info ?

thanks