Rauland Telecenter U

Hello. I was wondering if anyone out there has integrated with a Rauland Telecenter U (TCU)?  Rauland specs state that it does not support Secure SIP or Secure RTP.  Would the TCU be able to place SIP calls without any authentication or be able to page through the SIP Trunk of their Controller? Unfortunately, Rauland has very little SIP settings that can be changed so it's pretty much set it up their way. Any help is much appreciated! Thanks in advance!