Just as simple issue's :-)

[Mr. Hacker]

Steps.
Verizon wireless connection "Tips"

1. Since you are using awireless verizon connection, pleasee check your internet connection speed if you have enough bandwith with your magicJack, magicJack needs 128kps upload and download. Please go www.speedtest.net, in there please click the yellow pyramid and you will know your upload and download speed.

2. since you are using a wireless comnection, Your wireless connection consume much power. They interfere with your magicJack's power flow, thus making it suffer power insufficiency. At this point, I'm afraid you're required to use your magicJack with an AC-powered USB Hub.

3. please disable your antivirus and firewall, Sometimes, a strong firewall or router, will block the voice audio (called RTP) from reaching your Voip.com phone adapter.

if doesnt help
1.To solve this issue, you should open the following "ports" on your router or network device:
Port range 5060 through 5065 (protocol: UDP)
Port range 10000 through 30000 (protocol: UDP)

2.And if are behind a network/external firewall or router, please open the following ports: magicJack uses ports UDP 5061, TCP 80 and TCP 443.