What is OctroTalk?
OctroTalk is an Jabber/Gtalk client with support for GTalk (GMail) audio and Video calls. OctroTalk also supports SIP calling (through a provider of your choice).
Features: 1 ) Connect securely to GTalk/Jabber 2) P2P Audio/Video Calling 3) Complete VOIP product. Access to PSTN via configurable SIP provider 4) Supports Low Bandwidth Codec 5) Gmail/GTalk compatible Video and Audio Calls
The official website and the apps are no longer available