Alcatel-Lucent IP-Touch Telephone running OmniPCX Enterprise 7.0 and later enables the mini switch by default, which allows attackers to gain access to the voice VLAN via daisy-chained systems.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34760
http://www.securityfocus.com/bid/24360
http://www.securityfocus.com/archive/1/470742/100/0/threaded
http://cert.uni-stuttgart.de/advisories/al-ip-touch-vlan-filtering.php