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• #Iphone wifi signal tester code

#Iphone wifi signal tester code

In that case, you can use this code to check if Call Line Presentation is enabled or disabled.ġ0. If the recipient of your calls isn’t able to view your mobile number, there might be a problem with your number’s Calling Line Presentation. *21mobilenumber# (Divert Calls to this Number)ĭon’t want to be disturbed by a phone call while you watch your favorite sports team fight it out? Well, for people unaware, Call Forwarding is a feature that lets you divert incoming calls to your other number or even a voicemail and you can use these secret codes to check its status on your phone or to enable it and divert calls to another number. Call Forwarding Code: *#21# (Check Status) You can enable it in iPhone Settings->Phone->SIM PIN.Ħ. The “pin” here is the SIM Pin, which is the lock on your SIM card. Call Barring Code: *#33# (Check status)Ĭall Barring lets you block all incoming or outgoing calls on your phone and if you want to check its status or enable/disable it on your iPhone, you can use this code. This should come in handy if you just can’t seem to find the Call Waiting options on your iPhone.ĥ. Call Waiting Code: *#43# (Check Status)Īs you might have guessed, this iPhone secret code simply lets you check the status of Call Waiting and enable or disable it with ease. You can just enter the code in the iPhone’s dialer and press “call”.Ĥ. If you have been facing a few issues regarding SMS, it’s best to check the SMS center number and you can use this secret code to do exactly that. We tried the code to mask our caller ID but it failed to work for us, so we will suggest you keep your expectations low.Įvery text message that you send from your phone first goes to a server or SM S center number, which then sends it to the number you send it to. Simply open the Phone app enter the following number and dial it. To get started, make sure your iPhone has an active cellular connection so that it can access and use Field Test Mode to measure the signal strength. But fret not, there is still a way to check out the actual cellular signal as numbers on iPhone with the Field Test Mode in iOS 13, iOS 12, and iOS 11. With the introduction of iOS 11, Apple slightly tweaked the functionality of “Field Test Mode.” For a change, it no longer shows the numerical dBM (decibel milliwatts) cell signal indicator in the status bar of the iPhone. To disable the decibels and get back the usual network bars on your iPhone, you can open Field Test page again with the secret code and tap on the top-left edge, which says “Phone” or you can simply press the home button once. Then, you can take a note of your signal strength, If the number is above -80 (-70,-60.), the signal strength is close to full and if it’s below -110 (-120,130.), the network has a pretty weak signal. It’s important to note that the signal strength will vary depending on if you are connected to a 3G or 4G network. Once done, wait for 20-30 seconds for the network to settle down. Once you are on the power off-screen, just press and hold the home button and you will see the bars replaced with the network strength in decibels.

Then, just press hold on the Power/Lock button unless you get the “Slide to turn off” option. When you enter the code in your iPhone’s dialer and hit the call button, you will be taken to the Field Test page, where you will find various network details.

That’s not all though, as you can also use this code on your iPhone to get a more granular look at your network’s signal strength. The bars are a good way to view signal strength but if you want to know the exact strength, you can use this code to view signal strength in decibels. This secret code on the phone triggers the Field Test Mode, which brings you a lot of technical details around your network. With this little disclaimer out of the way, let’s get started, shall we? So, don’t be surprised if some of those interesting codes fail to work for you. And most importantly, they don’t work everywhere in the world due to either restriction or unwillingness of carriers to embrace those codes. Before taking a peek at all the codes for iOS devices, keep in mind that most of them are carrier-specific.