VoIP technology enables any mobile device service to operate and deliver voice communication using the internet protocol. Here, the PSTN implements voice communication over the landline telephone calls between two endpoints. Similar to other networks, voice communications are prone to VoIP security attacks. Organizations are often unaware of the security posture concerning their VoIP and PSTN infrastructure. They are not adequately able to protect from the VoIP security risks and threats that come with sensitive devices and networks.