The majority of dual sim phones have a WCDMA(3G) and GSM (2G) sim card slot as the primary slot and a GSM only sim card slot as the secondary. This means that only one sim can use a 3G connection, the other sim will only be able to pick up a 2G signal. So as long as you don’t plan on using the 3G internet connection on both sims you’ll be fine. The 3G sim card slot is marked with a “W”, the 2G sim card slot is marked with a “G”. There are plans for newer dual-sim Android phones which have dual 3G compatible sim slots.
When you turn on your phone you are greeted with two signal bars at the top of the phone, the first one is for the first sim slot, the second one is for the second sim slot. The majority of phones work in a dual standby mode, whereas a minority work in a dual active mode. Dual standby is when both sims can work at the same time, but say for example you use one sim card to make a call, the other sim card will not work and be on standby for the duration of the call. Dual active is where both sim cards will be active all the time, even during calls. An easy way to get around the Dual standby limitation of turning one sim off when you’re on a call is to set up call forwarding on both sims to each other. This means that if you are using Sim 1 on a call and someone calls you on Sim 2, which is on standby, the call will be forwarded to sim 1 with the active connection and will be listed as a waiting call which you can choose to answer. Simple!
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You can manage both Sim cards from the settings. Just click on sim management at the top. Here you get the option to turn the Sim cards on and off at will and you can set the defaults for each sim. For example I use 3 as my data connection, where as I have O2 as my default for voice calls. You can also set the phone to always ask you which sim card to use. The picture below shows you what it looks like when you set it to “always ask”.
You can also assign contacts to certain Sim cards, this is useful when differentiating between work colleagues and personal contacts. The call/texts goes through on the sim of your choice no matter what. This can be changed from the contact itself, or from the sim management settings.
When you get a call or text, or if you send a call or text, the phone will display the Sim used. For example, you can see that one text was from my three number, another text was to my O2 number. You can also change these settings on the go. For example, when in the dialer or messaging service, drag down the notification bar and you get an option to switch to a different sim card as default.
Using a dual sim phone on Android is simple. You have all the options you need at the touch of a button.
how to set to ask ?!
My phone is LG optimus L5, E615, dual sim.
and android version 4.0.4 .
it has a shortcut key for changing primary sim for outgoing calls and messages but i want to set it in a way which ask me each time before making call or sending sms ! because i sometimes will forget which one is set as primary !
but in phone settings there is no option to choose it (
( in my phone, it's not like what you described here )
is there any app for this purpose ?!
So I have SIM1 for private contacts and SIM2 for work in my phone which runs Android 4.2.1.
I've used the Contact Binding to bind all the contacts from work to SIM2.
But when I choose a contact from work to call, the phone still pops up the box to choose via which SIM I want to make the call.
It does show a sort of favourite logo next to my work SIM, but what is the use of Contact binding if it still asks me for the SIM.
Anyone who has a solution for this problem? I can't figure it out.
I think this SDK / API from MediaTek is being used on the Dual SIM Android phones with MediaTek SoC:
http://developer.mediatek.com/mre/en
Added my question on MediaTek's MRE site:
http://developer.mediatek.com/mre/en/question/6952
Flow said:
So I have SIM1 for private contacts and SIM2 for work in my phone which runs Android 4.2.1.
I've used the Contact Binding to bind all the contacts from work to SIM2.
But when I choose a contact from work to call, the phone still pops up the box to choose via which SIM I want to make the call.
It does show a sort of favourite logo next to my work SIM, but what is the use of Contact binding if it still asks me for the SIM.
Anyone who has a solution for this problem? I can't figure it out.
Click to expand...
Click to collapse
I had the same problem with jiayu g4 (is it a problem?)
I bind my private and work contacts to the simcards, and in settings i can choose a standard calling sim or "ask each time".
If i choose a standard sim then contacts binded to this sim are dialed directly, but on other contacts the phone will ask every time.
Is there any solution to dial contacts immediately?
BaSch83 said:
I had the same problem with jiayu g4 (is it a problem?)
I bind my private and work contacts to the simcards, and in settings i can choose a standard calling sim or "ask each time".
If i choose a standard sim then contacts binded to this sim are dialed directly, but on other contacts the phone will ask every time.
Is there any solution to dial contacts immediately?
Click to expand...
Click to collapse
Thanks for the tip, I'll try that
It's not really a problem per se, but because my car sytem doesn't know how to deal with a Dual SIM phone (like every bluetooth connected in-car system here in Europe I guess). It will always dial using the first SIM and won't ask for SIM. The first SIM is the only slot I have with 3G support so I have to have my private SIM in that (first) slot and my work SIM in the second slot.
I also asked Cubot the same question, they were going to look into it (for whatever that's worth)
That was really a great tip!
I've seperated all my contacts with contact binding between both SIM's (private and work) and have set the default for Voice calls to my work SIM.
When calling a work contact it will immediately dial through work SIM, when calling a private contact it will first ask.
I know it's still not exactly as it should be, but at least it makes everything al lot easier
I am happy to help you.
Send from JY-G4 (Tt4 Beta)
Flow said:
So I have SIM1 for private contacts and SIM2 for work in my phone which runs Android 4.2.1.
I've used the Contact Binding to bind all the contacts from work to SIM2.
But when I choose a contact from work to call, the phone still pops up the box to choose via which SIM I want to make the call.
It does show a sort of favourite logo next to my work SIM, but what is the use of Contact binding if it still asks me for the SIM.
Anyone who has a solution for this problem? I can't figure it out.
Click to expand...
Click to collapse
hm_fa_da said:
My phone is LG optimus L5, E615, dual sim.
and android version 4.0.4 .
it has a shortcut key for changing primary sim for outgoing calls and messages but i want to set it in a way which ask me each time before making call or sending sms ! because i sometimes will forget which one is set as primary !
but in phone settings there is no option to choose it (
( in my phone, it's not like what you described here )
is there any app for this purpose ?!
Click to expand...
Click to collapse
I don't think it's an app. It's some sort of setting. The Allview P6 Stony, Fly IQ444 and NGM Legend XL all use the same hardware.
The Fly IQ444 can associate contacts with a SIM only after adding the following code to the build.prop
Code:
ro.gn.association.sim=yes
ro.gn.association.sim_switch=yes
The P6 Stony can't associate contacts with a SIM at all
(Well ok, if you add the code AND use the FLY IQ 444 settings.APK it works
Finally the NGM Legend XL has an extra option which you can enable (settings -> Sim management -> Default SIM) to direct call with the correct SIM without any popups.
So the same phone with three different versions... why o why can't I find the Legend XL ROM anywhere :crying:
These phones are based on the MediaTek MT6577 SoC right?
And most of them onlu run Android 4.0 ICS?
Maybe the versions of the MRE SDK used for these phones are older than on the newer MediaTek MT6589 / Android 4.2 phones?
---------- Post added at 09:43 PM ---------- Previous post was at 09:40 PM ----------
In my car using Bluetooth it still doesn't work like I would like it to work unfortunately.
When Voice call dialing has been set to a specific SIM instead of on Always ask, dialing a number will always go over that specific SIM, even when dialing a contact that's bound to the other SIM.
Fortunately most calls I make in the car are work related, so no real biggy. But too bad it's not quite optimal.
Flow said:
[/COLOR]In my car using Bluetooth it still doesn't work like I would like it to work unfortunately.
When Voice call dialing has been set to a specific SIM instead of on Always ask, dialing a number will always go over that specific SIM, even when dialing a contact that's bound to the other SIM.
Fortunately most calls I make in the car are work related, so no real biggy. But too bad it's not quite optimal.
Click to expand...
Click to collapse
Exactly why I want this functionality too :good:
Can any one please provide a sime managrment app so that i can port it to my device ....plz
Sent from my Nexus S
It's not really a sim management app. I's more like integrated in the settings.apk, phone.apk and contacts.apk (for mediatek based devices) oh and a few lines in the build.prop
Freelander PX2 - SIM won't activate (no network)
Hi,
First, thanks for your explanation.
My tablet (Freelander PX2 with Android 4.2.1 with Kernel 3.4.5) sees my SIM card when I put it inside the slot (both of them, the one or the other).
It says "No SIM card inserted in slot 2" when I put a SIM in the first one.
But I can't make phone calls: there is no network signal and when I activate the SIM in Parameters>SIM management>SIM 1, and nothing happens when I click on "Unlock" when he ask for it.
As you say, the tablet is always in dual active mode (both sims work at the same time because there is two empty network signals in the notification bar).
Please, what should I do? I plan to use only one SIM (the 3G) for the moment.
Thanks,
Nick
----------------------------
ProfesorYeow said:
The majority of dual sim phones have a WCDMA(3G) and GSM (2G) sim card slot as the primary slot and a GSM only sim card slot as the secondary. This means that only one sim can use a 3G connection, the other sim will only be able to pick up a 2G signal. So as long as you don’t plan on using the 3G internet connection on both sims you’ll be fine. The 3G sim card slot is marked with a “W”, the 2G sim card slot is marked with a “G”. There are plans for newer dual-sim Android phones which have dual 3G compatible sim slots.
When you turn on your phone you are greeted with two signal bars at the top of the phone, the first one is for the first sim slot, the second one is for the second sim slot. The majority of phones work in a dual standby mode, whereas a minority work in a dual active mode. Dual standby is when both sims can work at the same time, but say for example you use one sim card to make a call, the other sim card will not work and be on standby for the duration of the call. Dual active is where both sim cards will be active all the time, even during calls. An easy way to get around the Dual standby limitation of turning one sim off when you’re on a call is to set up call forwarding on both sims to each other. This means that if you are using Sim 1 on a call and someone calls you on Sim 2, which is on standby, the call will be forwarded to sim 1 with the active connection and will be listed as a waiting call which you can choose to answer. Simple!
View attachment 1534336
You can manage both Sim cards from the settings. Just click on sim management at the top. Here you get the option to turn the Sim cards on and off at will and you can set the defaults for each sim. For example I use 3 as my data connection, where as I have O2 as my default for voice calls. You can also set the phone to always ask you which sim card to use. The picture below shows you what it looks like when you set it to “always ask”.
Using a dual sim phone on Android is simple. You have all the options you need at the touch of a button.
Click to expand...
Click to collapse
when you have 2 sim cards in 1 phone and both have internet data flat
..is there a hack to activate both line for data - merge the speed
combine )? do you understand me i want double speed :silly:
Hi, i do have a problem with my dual sim management in a Lenovo A800...
My SIM1 slot is the 3G card, while SIM2 slot is the phone/sms card...The problem is that whenever ia am uding actively the 3g, not in a standby mode, i am losing calls in the second sim...
Is there any way to change thiw?? for example to make the second SIM as the default one??
If contact association/ binding doens’t work the way you want it, check out the app “SIM Selector”. I must say it wasn’t first mentioned by me, but by Zimtsäure in this post here: http://forum.xda-developers.com/showpost.php?p=44478879&postcount=83
On my Allview P6 Stony the app also seems to work fine with my carkit. Finally my car dials the number with the right SIM. (Still testing though, but first results look good)
@nick_highj: Seeing two network signals doesn’t mean the phone is dual active.
Dual active is being able to actually use both SIMS at the same time. Like having a call on hold on SIM1 and taking a call on SIM2. In dual passive phones you also see two network indicators, but once you use a SIM the other SIM will switch to voice mail or unreachable.
@ctzulu: This would only be possible on a dual active phone which supports two 3G connections. I think it’s a hardware thing not software. Having a faster provider would be an easier solution.
@morrison100: Strange. Based on the dual active – passive thing I’d say if a call comes in you’d loose the 3g connection. Not the other way around. Like calls have higher priority than data. At least that’s how it works on my Allview P6 Stony. Although I never heard of it your device might have a setting to indicate priority between data or phone.
I think I figured it out, there is a tick box under the "more" tab on wireless and networks menu, where I should have checked the GPRS transfer prefer mode to be Call prefer. If not checked, its getting greyish, and changes to data prefer.
so is there no way that a dual standby phone can be used as a dual active phone? i know its a stupid post but i think that the difference shud be just software related and not hardware related
I have an unlocked S22U (purchased directly from Samsung) and I am trying to get dual sim set up. I have an eSIM setup currently which is functioning as expected. I get calls, messages, and 5G no problem. I have a physical SIM which also works fine; calls, messages, 5G. However, they only work if I disable one at a time. With both SIMs inserted, I only get 4G data out of the physical SIM and no data at all from the eSIM. If I set the eSIM as my primary SIM, it acts like I have no data at all.
I honestly have no idea what to think, does anyone have any input?
eSIM - Mint
Physical Sim - Visible
It sounds like a settings issue. Look under connections / mobile networks / network mode. Are they both on 5g? Also are you dual SIM both active in sim card settings?