Verizon sunsetting, and phasing out its CDMA service. The 3G CDMA cellular modules for 2GIG (as well as other M2M applications ) will be affected.

Verizon has begun the process of refarming the 1900Mhz band currently used for CDMA and EV-DO service in 10 selected cities for LTE data access as a long-term trial that will eventually expand nationwide, but not for many years. The first evidence of the spectrum refarming on the PCS band was found this earlier week in Manhattan, NY and Cleveland Ohio. When pressed by the media regarding the refarming, Verizon Wireless’ vice president of network performance Mike Haberman stated that the company isn’t refarming PCS spectrum out of necessity, but as a trial.

According to him, as Verizon is seeing EV-DO data usage across the PCS spectrum rapidly decline, it is moving that spectrum to 4G LTE service in order to stay ahead of its competition. The company did not confirm a timeline for refarming its entire PCS spectrum to LTE, but it stated it expects to operate the CDMA EVDO network on the PCS spectrum through Dec 31, 2019.

VoLTE (Voice over LTE) and XLTE

Verizon will no longer utililize CDMA (1XRTT, EVDO) spectrum for voice or data, and as a matter of fact, has stopped selling CDMA supported devices as of 2014, offering only pure LTE devices now.

Verizon and AT&T said today [Nov, 2014] the companies are taking the next step in the evolution of VoLTE (voice over LTE) technology by enabling VoLTE- to-VoLTE connections between Verizon Wireless and AT&T customers. VoLTE interoperability between Verizon and AT&T customers is expected in 2015.

Advanced Calling 1.0, a first-generation service suite enabled by Voice over LTE, or VoLTE, technology, is now available on America's largest and most reliable 4G LTE network with XLTE. With Advanced Calling 1.0, there is a clear difference. You will be able to enjoy natural-sounding High-Definition (HD) Voice and a Video Calling* experience that's as simple as making a traditional voice call.