Verizon Wireless suffered its second 4G LTE data outage. Verizon Wireless's claims of having the most reliable wireless network are being tested, with the company experiencing two outages on its new 4G LTE network this month.

  "Verizon Wireless 4G LTE service is returning to normal this morning after company engineers worked to resolve an issue with the 4G network during the early morning hours today," the company said in a statement e-mailed to CNET. "Throughout this time, 4G LTE customers were able to make voice calls and send and receive text messages. The 3G data network operated normally."

Verizon hasn't offered much explanation for why its 4G wireless network is experiencing outages. But given that Verizon is the first major wireless operator in the world to deploy the new 4G LTE technology on such a large scale, it's not surprising that it would experience hiccups in service, Entner said.

The new network Verizon is deploying is based on a new technology called LTE. And the architecture for the network is very different from the traditional cell phone network, which is based on a technology known as CDMA. While the traditional network uses a combination of circuit switched and packet switched technologies, LTE uses an entirely packet switched technology.