What's the difference between VoLTE & VoLGA

VoLTE (Voice over LTE) and VoLGA (Voice over LTE via Generic Access) are two different technologies used for providing voice services over LTE (Long-Term Evolution) networks.

1. VoLTE: VoLTE is a technology that enables voice calls to be made over LTE networks, which were initially designed for data services only. With VoLTE, voice calls are treated as data packets, which are transmitted over LTE networks, providing better call quality and faster call setup times. VoLTE supports HD voice and offers a range of features such as call waiting, call forwarding, and video calling. VoLTE is used by many mobile network operators around the world.

2. VoLGA: VoLGA is a technology that provides voice services over LTE networks using the existing 2G/3G network infrastructure. VoLGA is designed to allow mobile network operators to offer voice services over LTE networks without having to upgrade their existing network infrastructure. With VoLGA, voice calls are transmitted over the 2G/3G network and then handed over to the LTE network when data services are required. VoLGA has not been widely adopted by mobile network operators.

In summary, VoLTE and VoLGA are two different technologies used for providing voice services over LTE networks. VoLTE provides voice services over LTE networks by treating voice calls as data packets, while VoLGA provides voice services over LTE networks using the existing 2G/3G network infrastructure. VoLTE is widely adopted by mobile network operators, while VoLGA has not been widely adopted.