How to turn on telecom volte

The method of opening volte for telecom is as follows:

1. Send the short message "ktVoLTE" to 1000 1, reply "y" and start the "VoLTE" test.

2. Open the setting interface and select the option of "Dual Card and Mobile Network".

3. Enter * # * # 86583 # * * in the dialing interface.

4. After the prompt "Volte operator check is disabled" appears, return to the setting interface of "Dual Card Mobile Network".

5. Manually turn on the "Enable VoLTE HD Dialogue" option.

VOLTE is called Long Term Evolution Voice, which means the high-speed wireless communication standard for mobile phones and data terminals. Based on the IP Multimedia Subsystem (IMS) network, it uses special configuration files (defined by GSM Association in PRD IR.92) for the control plane and media plane of voice service on LTE.

This enables voice services (control and media level) to be transmitted as data streams in LTE data-bearing networks without maintaining and relying on traditional circuit-switched voice networks. VoLTE's voice and data capacity is more than three times that of 3G UMTS and six times that of 2GSM. Because the VoLTE packet header is smaller than the unoptimized VoIP/LTE, it can also use the bandwidth more effectively. ?