The IP addresses used for signaling and media are also stored in the CDRs.</p> Offline Messaging Text Messages <p>Messages sent using SIP MESSAGE method that cannot be delivered to local users of the platform are stored for later delivery in cleartext format in the platform database.</p> Voicemail <p>Voicemail message are sent un-encrypted over email as attachments and stored un-encrypted on the server voicemail server (optional).