It looks like its using a proxy setup. The handheld connects to the win-hand server and your PC is running an open connection to the same server, where the data is transfered back and forth after being encrypted.
Session keys are used up over time and then new ones are genearted during a HotSync.
Kind of cool approach. I tried several other remote access type apps, and this one is by far the easiest to setup and use.
I'm a paranoid person. I don't like the idea of my PC having an open connection to that proxy server. What else could that server be doing on my PC while connected (spying) ???
Thanks for all the suggestions and feedback. After several conflicting answers from customer service, I went to my local VZW store. A bored, but kind customer service rep. checked the network settings and it worked fine.
By the time I drove the mile and a hale home I had the same problem. Being persistent I called customer service yeat again for another conflicting answer. The one helpful clus from customer service was that when calling from home, I was on the extended network. I thought that was funny as I live in the middle of Verizon's solid coverage through California's Central Valley). Turns out Sprint put up a new cell tower a couple blocks from my house and I lost 1X access ever since. Data services are fine less than a half mile from that tower. I don't mind too much as I access data on the 7135 only when I am away from the house. Were I more adventuresome, I might change to the America's Choice2 plan which has no roaming or extended network
I have been using Win-Hand for almost 2.5 years now, even when I had my 6035. This is an awesome program. I have never had any security issues with it.
The only item is, it use to be $39.95 with frequent updates. The last release under this purchase program was somewhere around the 4.1 version.
Now I feel the developer is going to a timed subscription version. This way he can charge per month, year, etc.
I have never switched over to the new free version, since I have never had any problems with my purchased version.
Now since I have gone thru two 7135 phones with the "Service required, Contact provider" message, I am hoping I will still be able to enjoy Win-Hand.
I have no affilliation with Win-Hand or Michele Turcotte <sp> at all. Just a happy user of the purchased program.