The original Network Extender was only capable of connecting to the 1xRTT and 3G EDVO network for the phones to handle the voice calls and access to the slower data network.
The 4G network extender uses VoLTE to handle the voice calls over the 4G network.
I'm most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.
WILHAN15, we want to make sure all your questions are answered regarding the Network Extenders. As Ann154 stated, the primary difference is the network connection (4G LTE vs 3G/1X). Here is more information about our Network Extenders:
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