you should not need a tech to come out, if you are hardwired then you likely will be connected right away once your pc and the router boot up.
If you are wireless, then you will need to have the proper wifi credentials to connect. you can find those on your router, on a sticker, and the Name of your network is labeled as the ESSID, and the password or passphrase is labeled as a WEP KEY
after you are connected and surfing. you should go to http://activatemyfios.verizon.net, enter in your number and let it load the proper VZ software. This last step isn't neccessary, but if you are used to the VZ logo's and icon's and want them back, this is a decent way to do it.