Dual VoLTE technology has 4G LTE benefits such as a high data throughput performance, more reliable coverage, lower power consumption and a consistent HD call quality when you make calls via either cellular connection.
If you're interested in learning more, please read about Dual SIM.
Here's some frequently asked questions to get you started.
Q: Which Sim Tray is the main SIM?
A: Consumer can select.
Q: What is dual 4G?
A: Dual 4G LTE enables 4G connectivity on both SIM cards, allowing you to switch between two 4G networks seamlessly.
Q: Does the Dual Sim Consume more power?
A: This technology won’t come with any noticeable battery penalty.
Q: Are there any limitation to use different carrier sims?
Q: Can I talk while the other SIM is using (data/voice)?
A: Only with dual-VoLTE, users on a call with primary card can receive call through secondary card. This presents user a choice to switch calls like having a second phone.
Q: What is dual VoLTE?
A: Dual 4G VoLTE is a subset feature that allows you to make HD calls from either SIM
Q: If I’m on a call with SIM 1 can I receive a Call with SIM 2?
A: Yes, with Dual Volte Sims Only, but you cannot hold the original call.
If you have any questions? Please comment below
The other SIM could be for the 'batphone'