Xiaomi smartphone owners often face the need to adjust incoming and outgoing connections. Standard system settings do not always allow flexible management of call timers, which creates inconvenience. Users want to know how to change the duration of a call to respond or extend the waiting time for a response from the interlocutor. In this guide, we will discuss all the available ways to adjust these parameters, from hidden engineering menus to operator system limitations.
It should be noted that the term "duration of the call" can be interpreted in two ways: it is either the time you wait for a response from the subscriber before the call is dropped, or the limitation on the duration of the conversation itself. MIUI And HyperOS, these settings are often hidden from the average user. GSM-It's important to understand that many of the settings are not your smartphone, but your settings. SIM-map.
In this article, we will discuss the technical aspects of telephony on Android, which commands to enter into the engineering menu, how to check the current status of the timer and what to do if standard methods do not work. We will also touch on the topic of battery optimization, as constant background attempts to connect can consume battery power faster than usual.
Understanding Call Timers in Android and MIUI
Before you make any changes, you need to understand the terminology. In Android, the Telephony Framework handles calls. It controls dialing, waiting for a response, and finishing a session. The Ringback tone is a parametry that is usually set on the network side, but the phone can emulate a timeout. If you don't pick up the phone, the screen goes out, or the call is reset, it's the system timer of inact.
There is also a time limit for the incoming call, which determines how long the phone will call if you don't respond. Most Xiaomi firmware defaults to around 30-45 seconds. After that time, the call is either forwarded to voicemail or reset by the subscriber. It's often impossible to change this setting with standard Settings interface tools, as Xiaomi hides these options to simplify the user experience.
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For accurate diagnosis of call problems, use the hidden GSM test. Dial the code ##4636## in the Phone app and select Phone Information.
It is important to distinguish between software and hardware limitations. Xiaomi smartphones, whether budget Redmi or flagship Mi, use the same logic chains in the firmware. However, the presence of VoLTE (Voice over LTE) can affect connection speed and timer stability. If you use VoLTE, the delay before connection can be less than in 2G/3G networks.
Configure through the engineering menu and USSD-code
The most effective way to change the settings of a call is to use special codes that allow you to access hidden parts of the modem configuration. Be careful: changing the parameters in the engineering menu incorrectly can lead to unstable communication.
To access the advanced telephony settings, Xiaomi uses the code ##3646633##. Once entered, you will be taken to the Engineer Mode menu. Here we are interested in the Telephony tab. In some versions, you will find the following: MIUI The path may differ, but the logic remains the same: looking for settings related to call times or network settings. USSD-team.
☑️ Check before changing network settings
Often, the problem is solved by resetting the forwarding settings to the operator’s standard values. To do this, in the Phone app, dial the ##002# command and press the call button. This action will cancel all types of forwarding, including “if busy” or “if no response”, which indirectly affects how long the beep for the person calling you will last.
⚠️ Note: Introducing incorrect values into the engineering menu fields (for example, changing frequency bands or signal power) may result in network loss or inability to make calls.
Using Hidden Codes to Manage Timers
In addition to the engineering menu, there are specific USSD-It's at the operator level that the most common time is given for the horns to beep, the standard interval is usually 30, 45 or 60 seconds, and you can change it by sending a special sequence of characters.
One popular command to control the response timer is to set a redirect with a delay. The command is 61*[voice mail number]11*[time in seconds]#. However, on modern Xiaomi smartphones with a MIUI shell, direct entry of such codes can be blocked by the security system or require confirmation through the operator's service center.
| Code/Command | Function | Outcome of implementation |
|---|---|---|
| ##002# | Resetting of diversions | Cancels all types of call forwarding |
| *#61# | Timer check | Shows the number and time delay of the forwarding "no response" |
| **61*number*11*time# | Timer setting | Changes the waiting time before redirect (depending on the operator) |
| *#43# | Status of waiting | Checking the status of the service "Waiting call" |
If the standard codes do not work, this means that the operator has blocked the possibility of changing the parameters via the USSD. In this case, you can only change the duration of the call through the operator’s personal account or contacting the support service.
Third-party applications for call control
When built-in tools are not enough, Google Play Store apps come to the rescue, allowing you to flexibly customize your phone’s behavior during incoming or outgoing calls. Such utilities can automatically drop a call after a certain time, turn on speakerphone or send SMS-reply.
One popular solution is to use autoresponders or call managers, which run on top of a standard caller and intercept events, for example, an app can be configured to reset an incoming call in exactly 10 seconds if you don't pick up the phone, ignoring the standard system timer, which is useful for creating a busy effect or saving time.
- 📱 Call Assistant – allows you to create complex incoming processing scenarios, including time constraints.
- 📞 Auto Answer & Reject – a specialized application for automatic response or retraction of a call on a timer.
- ⚙️ Tasker is a powerful automation tool where you can write a script: “If there is an incoming call and 20 seconds have passed, complete the call».
When using third-party software, it is important to remember permissions, the application will need access to Phone, Contacts and possibly Microphone, and in MIUI you need to be especially careful: the system can aggressively unload such applications from memory, you need to fix them in memory and give permission to autorun.
Why can’t the apps work on Xiaomi?
The influence of the operator on the duration of the horns
Often, users look for a setup in the phone, forgetting that the key link is the cell tower. Ringback duration is a parameter that is set in your operator's HLR (Home Location Register) settings. The phone only displays the state of the network. If the operator has set a limit of 30 seconds, no Xiaomi will make the beep last a minute unless you use redirection.
Different operators use different timing standards, for example, on networks. 4G/LTE VoLTE-enabled connections are set up faster and subscriber response time can be reduced compared to networks 2G. And there may be other restrictions when roaming, and if you change operator, and the behavior of the calls has changed, the reason lies in the network settings of the new network settings. SIM-map.
⚠️ Note: Attempts to change network timers through the engineering menu may be regarded by the operator as anomalous activity. Use such methods only in extreme cases and understand the risks of blocking the service.
To clarify the current settings, it is best to use the official application of your operator. There is often a section called "Services» → «Redirection, or Voicemail, where you can visually adjust the latency, is the safest and most legal way to affect the duration of a call.
Solving problems with rapid challenge reset
Sometimes users are faced with a situation where the call resets itself after a few seconds, even if the timer has not expired. This may not be due to the timing settings, but to the quality of the signal or software errors MIUI. First of all, check whether the function "Deflection Call" is activated when you bring the phone to the ear (approximation sensor).
Also, it can be a crowded memory or an application conflict. If the phone doesn't have time to process the incoming signal due to a lack of resources, it can reset the call. Clearing the cache of the Phone and Google Play apps often helps solve the problem. Go to Settings → Apps → All apps → Phone → Memory → Clean.
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If calls are reset instantly (1-2 seconds), the problem is most likely a bad signal or lock on the part of the operator, not the settings of the smartphone timer.
In rare cases, a complete network reset is required, which will return all modem settings to factory values. Path to function: Settings → Connection and Sharing → Reset Wi-Fi, mobile network and Bluetooth. Once rebooted, the phone will re-register on the network with the correct timer settings.