This desktop tools enhancement is new in the Developer 2/07 release.
Ekiga is a videoconferencing and VOIP/IP-Telephony application that enables you to make audio and video calls to remote users with H.323 or SIP hardware or software (such as Microsoft Netmeeting). It supports PC-to-PC and PC-to-Phone calls.
Ekiga also supports the following features:
Call Forwarding on busy, no answer, or always (SIP and H.323)
Call Transfer (SIP and H.323)
Call Hold (SIP and H.323)
DTMFs support (SIP and H.323)
Basic Instant Messaging (SIP)
Text Chat (SIP and H.323)
Possibility to register to several registrars (SIP) and gatekeepers (H.323)
Possibility to use an outbound proxy (SIP) or a gateway (H.323)
Message Waiting Indications (SIP)
Audio and Video (SIP and H.323)
STUN support (SIP and H.323)
DTMF support
LDAP support (Addressbook)