ToxicContactOffline.wav, ToxicRecvMessage.wav, ToxicContactOnline.wav, ToxicTransferComplete.wav, ToxicError.wav and ToxicTransferStart.wav are licensed under the same license as Toxic.

IncomingCall.wav and OutgoingCall.wav are licensed under the "Creative Commons Attribution 3.0 Unported", all credit attributed to Adam Reid.