Secunia Security Advisory – Sipera VIPER Lab has reported a vulnerability in the Vonage Motorola VT 2142 phone adapters, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60460/sa27380.txt
Source: https://packetstormsecurity.com/files/60460/Secunia-Security-Advisory-27380.html