This is not a bug in KDE Telepathy rather the opposite.
All telepathy clients are dbus activated, so dbus just chooses whatever app can handle it (in this case, showing a text chat)
In telepathy whoever is launching a channel can provide a "preferredHandler" and give the name of the handler.
Unity clearly isn't giving one, (empathy) so dbus loads something at random. Setting a prerfferedHandler on ensure_channel will solve this.
This is not a bug in KDE Telepathy rather the opposite.
All telepathy clients are dbus activated, so dbus just chooses whatever app can handle it (in this case, showing a text chat)
In telepathy whoever is launching a channel can provide a "preferredHandler" and give the name of the handler.
Unity clearly isn't giving one, (empathy) so dbus loads something at random. Setting a prerfferedHandler on ensure_channel will solve this.
(signed, KDE Telepathy developer)