How to Force-enable VoLTE calls on 4G LTE that not supported by DITO Telecommunity

This is information on how to use the Engineering Settings (Engineer Mode) on any MediaTek Android handset for DITO subscribers to allow VoLTE calls by entering the device's settings.


Requirements:

Please read Section 3.) The DITO Network and Section 7.) Mobile Devices of the "DITO Subscription Terms and Conditions" before continuing.

You must own an Android device with a MediaTek Chipset, so make sure to verify its specifications and download Device Info HW from Google Play to learn more about it. Only MediaTek devices powered by this chipset have access to Engineer Mode.

I also want to add a warning that says it is your responsibility to use your smartphone and the DITO network.


Prerequisites:

1.) 4G LTE functionality is required on all MediaTek smartphones. Without 4G LTE, the feature cannot be supported.

2.) Your device must support the LTE Bands that are now available, for example, Band 1, Band 28, and Band 41, with plans to support additional LTE bands in the future.

3.) Following the configuration of your APN, changing your mobile number, etc., you must have DITO SIM active on your smartphone.


Method 1: Turn on VoLTE in the settings of the device

You must be familiar with this process on mobile OS because this instruction differs greatly depending on the settings on any given device.


Steps

1. Visit the device's settings

2. Tap Internet or network connections

3. Select Cellular or Mobile Networks.

4. Choose a network (which your carrier is DITO)

5. Selecting VoLTE, HD voice, or Enhanced 4G LTE calls will then be enabled. Turn it to "ON"


This is a fundamental step; if Method 1 does not succeed, keep VoLTE calls active and move on to Method 2.


Method 2: Force-enable VoLTE in Device's Engineer Mode.


Follow these steps from 1-5.


Step 1: To access the Engineer Mode, you have 3 ways to do it.


1. Install using Device Info HW on Google Play.

• Open Device Info HW

• Tap the drawer on the top-left side

• Select the “Engineering Menu”

• Finally, you're in Engineering Mode.

→ Now, proceed to step 2


2. Install using Activity Launcher on Google Play.

• Open Activity Launcher

• Search the name “EngineerMode”

• Find the name called EngineerMode (com.mediatek.engineermode.EngineerMode) and open it.


• At last, the Engineering Mode has been selected.


3. Enter using a native dialer app 

• Open your native dialer app (Phone)

• Type the code ★#★#3646633#★#★

• Finally, you're in the Engineering Mode

Now proceed to step 2


How Engineer Mode Appearance:




So you can configure Band Mode, IMS, Misc Feature Config, and Network Selecting.
This is a real Engineer Mode, some of these are different which is fake. This is exclusive only to MediaTek devices.

Step 2: Tap IMS
Step 3: Select the network you have. In which a SIM card is mounted to
Step 4: In the VOLTE Setting section, change the setting to “CMW500” from the Default setting.
Step 5: Tap the “SET” button.

Once you have done this, the VoLTE or HD icon will appear on the status bar.


To test VoLTE calls, dial 185 with DITO for FREE. Once you have been successful working with them, then Congratulations!

You can now send and receive voice calls with any subscribers, because of the VoLTE technology.

It is important to keep VoLTE enable on your device in case of emergency, so you can call the emergency hotline in the Philippine departments.


For Xiaomi (MediaTek model) devices,
Enter the code in your native dialer.
*#*#86583#8#*

Until the toast message will show as:
VoLTE carrier check was disabled.
-This means your VoLTE is enabled through your device's settings.

Meanwhile, the toast message shows as:
VoLTE carrier check was enabled.
-This means your VoLTE is disabled through your device's settings.

Make sure your VoLTE icon is present on the status bar.

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Some Tips & Tricks and some Troubleshooting Tips

Tip 1: Looking the real-time info about Phone Info

To access the cell/phone info you have 2 ways to do:

1. Using Net Monster on Google Play.
• Open Net Monster
• In the first time, grant all 2 required permissions
• Tap “More Options” in the bottom right side
• Select “Phone Info”
• Finally, you can show the cell info

You can also use Activity Launcher to search the public activity to be accessible.

Search the name: “com.android.settings.RadioInfo”


2. Enter using the native dialer app 

• Open your native dialer app (Phone)

• Enter the code *#*#4636#*#*

• Finally, you can show the cell info


Now, you can also see the full info such as IMEI, Phone number, Signal Strength, Voice Network Type, Data Network Type, VoLTE Provisioned, Video Calling Provisioned, and more.


Additionally, you can see IMS Service status information in Cell info.

 Turn on ViLTE in Tip 3 to get around IMS Status to utilize it for video calls over LTE.


Tip 2: Enable USSD Support using EngineerMode (Optional)
• Open EngineerMode (See above)
• Tap IMS → Choose your network slot
• Tap USSD
• Tap USSD Support
• Switch it “ON” and then hit SET.

To test it out, open your native dialer app. Enter (*185# and hit the Dial button.

The USSD dialog that displays the Welcome message looks like this.


Tip 3: Enable ViLTE using EngineerMode (Optional)

• Open EngineerMode (See above)


• Tap IMS → Choose your network slot

• Tap Common

• Tap video_over_ps_support

• Enter the number, change the value to “1” (from “0”), and then hit SET


-Some devices will revert back to default (0) if you restart your device or switch on/off the Airplane Mode.


Tip 4: Lock LTE Band using EngineerMode

• Open EngineerMode (See above)

• Tap BandMode → Select your network slot

• In LTE mode selection, check/uncheck the band you like (On DITO, Band 1, 28 & 41 are supported.) Uncheck some of them to ignore the signal received from the device. Then hit SET.

*To revert your changes, hit RESET TO DEFAULT and then hit OK to reset its default band settings.


Tip 5: Change the network from 4G pref (3G/2G) to 4G LTE only using Engineer Mode.

• Open EngineerMode (See above)


• Tap Network Selecting → Select your network slot

• Select the drop-down menu to select the option and change it to LTE only (from LTE/UMTS/GSM). After that, it will be set immediately as 4G LTE only.


To revert this network you selected, you can set it manually as their default, or you can go to the device's settings to change it.


Please give comments and replies with your response and concerns. Also please share this thread to help more users try this method to enable VoLTE on any MediaTek devices powered by the DITO Telecommunity.


For educational purposes only thank you/

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