The Mystery of the X in X Video Relay Services...

Tonight's interpreter was very interesting, She was friendly and very competent. She worked for XVRS. 

I googled XVRS and the first result was www.cacvrs.org/CAC_Relay/Home.html ??? That really threw me off. The website is still down. I even wrote a blog about CACVRS a while ago. http://www.cacvrs.org/ did not work and according to myvrs.org, CACVRS filed Chapter 11 bankruptcy. So I did some more googling and I found this http://cacrelay.com/xvrs/.

http://cacrelay.com/

I noticed the main domain is http://cacrelay.com/ I clicked on it and what do you know!?
"CAC Relay Services provide you choices in how to communicate. Whether you do it through Video Relay Service (XVRS.TV)..."

I am utterly baffled. Why does CAC Relay call their Video Relay Services XVRS ??? What does X stand for?  Nevertheless, CAC Relay (or XVRS) provides the following:

• 24 / 7 VRS
• VP: XVRS.TV
• Hearing can call @ (866) 500-9662
• 10 digit number and 911
• Text Relay through AIM (XVRSRelay)
• VRI (competitive rates)
• Spanish VRS 24 / 7
• VP: SpanishVRS.TV
• Hearing can call @ V: (866) 448-8398

There is one particular thing I did like about their website, they list their public booths. A public booth is where you can go and make a VRS call without having to pay for anything. http://173.201.120.209/cacrelay/CAC_Relay/Booth_Locations.html. That is nice to know.

So can anyone clarify what's the relationship between XVRS and CACRelay? Thank you in ahead.