if (c.getVoiceSender() != null) {
c.getVoiceSender().killSocket();
// c.setVoiceSender(null);
}
c.setVoiceSender(new VoiceSender(contactIp));
Thread sender = new Thread(c.getVoiceSender());
sender.start();
try {
NetworkService.sendPacket(contactIp, new Packet(EnumPacket.CLIENT_ConfirmVoice, p));