While charging, the phone does not accept incoming calls. The phone does not accept incoming calls: reasons and solutions

Sometimes situations arise when you have a phone on your desk or in your pocket, but for some reason calls are not being received. Why doesn't your phone ring? Let's look at a list of typical reasons.

Why doesn't my mobile phone ring?

Why does it happen that you can’t make a call from cell phone or even take a call?

• Problems with the SIM card. The phone may not work if you leave the service area. See if your operator is detected on the phone. Or maybe the monitor says, “No network.” If there is no network, but you are sure that you are in the access area, remove the SIM card from the phone and insert it again. Perhaps she just moved away. If this doesn't help, insert the SIM card into another phone. If it doesn’t work on another device, that’s the reason.
• Battery problems. The reason that you cannot call from your mobile phone may be due to discharge or failure battery. In this case, charge your phone or buy a new battery.
• Damage to the phone. The reason may be in the phone itself. Water could get on it, you could drop it. Perhaps your phone has already exhausted its resource or you got a low-quality device. To find out the exact cause, contact a workshop.
• The account has run out of money. True, in this case, they will most likely be able to reach you, but you will not be able to make a return call until you top up your balance.

Why doesn't the landline ring?

Now let's see why the landline phone doesn't ring.

• No payment. Remember if you forgot to pay for telephone services. Check with your operator about the status of your current account.
• Nutrition problems. If you are using a cordless phone, make sure its battery is charged and the base is connected to the mains. Without this it will not work.
• The device is faulty. Check that the telephone itself is working properly. To do this, plug the phone into a socket in another room where you are sure there is telephone communications. If the device shows no signs of life even there, take it for repair or replace it with a new one.
• Problems with the cable. If it turns out that the device is working, check the presence of contacts at the places where the wires are connected. Look to see if the wires coming from the handset to the device and from the device to the outlet have come loose. Has anyone pulled the telephone plug out of the socket? Is there a break in the telephone cable coming from the panel? After fixing these problems, your phone can work.

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You dialed the number of the person you need, but for some reason when you call there are no ringing tones. Sound familiar? In essence, this is the so-called pattern break. After all, since the advent of automatic telephone communication, the standard procedure for calling a subscriber is as follows: dial desired number, after which there are ringing beeps in the handset, which mean that the called recipient, at the “other end of the line,” is receiving calls on the telephone. With the advent mobile communications this procedure almost hasn't changed at all, except that clients cellular communications can connect to a service that will replace beeps with pleasant music. But what to do when, having dialed the desired number, you do not hear the usual signals, that is, there are no beeps and why did this happen?! Let's figure it out together!

Before proceeding to any action, I still advise you to call the number again. Perhaps it was a single short-term failure and the connection was restored!

Reasons why there are no beeps in the handset

In fact, the reasons similar phenomenon there may be several, but the most basic ones, due to which there are no beeps when you call a person, are either communication problems, or the telephone is broken. In addition, a lot depends on what kind of connection you use - landline wired or mobile.

Cable connection (home phone)

Despite the fact that in last years ordinary landline phone has almost lost ground, there are still quite a lot of people who use it. Mostly these are either elderly people or some companies and organizations.

If you don't get dial tone when calling from home phone, then first listen to see if there is a beep at all when you pick up the handset. Quite often people pick up the phone and dial a number without checking whether the telephone connection works at all.

When there is no readiness, this is usually indicated by a break in the line from the distribution cabinet to the telephone, or problems with the cable from telephone exchange to the closet. The malfunction could have been caused by various excavation works carried out near telephone line, cable breakage due to damaged equipment, flooding of distribution boxes and cabinets, etc. Until the installer restores the line, there will be no connection.

By the way, quite often line damage occurs in an apartment. For example, children accidentally broke the wire, a cat chewed it, and it rubbed against something.

Mobile communications (cell phone)

When there are no beeps when calling from a mobile phone, then most often this means a failure of cellular communication caused by the fact that you are in an area of ​​​​uncertain signal reception, or there is no coverage of your telecom operator in this place at all. In this case, “No signal” appears on the display.

Try redialing the number a few more times. Sometimes rebooting the phone helps.

It also happens that the culprit of the problem is the incorrect operation of the phone itself. For example, some application is installed that blocks incoming calls.

Unfortunately, in cases where there are no beeps when calling due to a broken cell phone or smartphone, there is no other option but to take it for repair.

Often Android users are faced with the problem of blocking incoming calls. The phone does not display information about the incoming call, but your interlocutor receives automatic message about the subscriber's unavailability on the network. Of course, Android does not accept incoming calls and deprives the phone of it main function– opportunities to connect two interlocutors. This problem may occur due to a malfunction software smartphone, breakdown GPS module or if there is a problem with the settings. Let's try to solve the problem when Android does not accept incoming calls.

Airplane mode.
When setting up your phone, you may accidentally turn on airplane mode. Choice this profile characterized by the fact that everything active networks will be unavailable, but the phone will work. You will not be able to call, send SMS or use the Internet; incoming calls will also be blocked. Offline mode Widely used during flights, as well as to preserve battery charge. To turn off this mode you need to perform a few simple operations: hold down the power button of the smartphone, turn off Flightmode.
The SIM card is faulty and the Android is not accepting incoming calls.
There are times when the SIM card barely touches the phone contacts. This may be caused by a broken slot, unusable card, or loose fasteners. If the card has been sent, then on the phone the network will disappear, and you will not be able to use communication services. A message indicating that there is no SIM card will be displayed on the screen. Your actions in this situation are extremely simple: take out the card, wipe the chip, insert the card back. Did it work? Great. If the network is still not identified, then the problem is most likely in the slot. To fully verify that the equipment is not working, you should insert another card. If there is no network, then we can safely take the phone in for repair.
There is no signal and the Android may not accept incoming calls.

The coverage area of ​​each operator is different. Don't be surprised if your phone doesn't recognize the network in the forest - it's justified weak signal. Also, most phones begin to lose the network in large ravines, remote places, and basements. To restore the network, you need to find a coverage area and the Android will again accept incoming calls.
There are also a number of internal problems that cause network loss. There is no way to deal with such breakdowns at home, because you need special equipment and spare parts. To carry out repair work, it is better to contact a specialized company that will repair your phone.

An attacker can carry out an attack to disable the phone, and the phone user will not even know. Wherein mobile device will be included. The mobile device will not be able to receive incoming calls and SMS messages. On the phone screen, the connection strength indicator will show maximum value. To implement such an attack, attackers do not turn to mobile operator. An attacker can carry out such an attack with little effort. The only thing that gives away the attack is the rapid drain of the phone's battery. The phone will drain quickly. Some phone models turn on the phone's backlight when exposed to an attack, and it does not turn off while the attack is in progress.

Such attacks create threats that could lead to disruption of important negotiations or critical situations when a work phone is needed. Sometimes such attacks are just part of a larger plan against the user.

How do attackers carry out such attacks?

The article about SMS spam describes the operating principle of SMS services. But few people know that such services can implement undocumented capabilities. There is a special type of SMS messages - invisible SMS. Such SMS are not displayed on the phone screen and are not notified by the phone that it has been received. Such SMS are usually used by operators to check the existence of a mobile phone, but so that the user does not know about the request. Attackers can use this to carry out a DoS attack on a mobile phone.

The implementation of a DoS attack through invisible SMS is implemented because SMS messages implement a signaling layer in GSM networks. Such messages clog the signal channel. You can create generators for sending invisible messages using HTTP or SMPP protocols. The basis of invisible SMS includes simple circuit. Table 1 shows the format SMS messages. Using these parts, an SMS is generated and sent to the SMS center.

Table 1.