![]() Nonetheless, usage of the additional sim is subject to some limitations. ![]() This means that Signal remains registered as before and that it can still be used to send and receive encrypted messages, SMS and MMS on the default sim card. Inserting a Second Sim Card: Inserting additional sim cards into the phone does not break any previously available functionality. And that Signal is installed and registered on this phone. The following steps describe how to add a second sim card to a phone with an existing installation of Signal.Īssumptions and Preconditions: The assumptions for the following steps are a dual sim or multi sim phone with only one sim card inserted. Adding a Second Sim Card to an Existing Installation When using Signal to send regular SMS, long-pressing the send button will allow you to choose the sim card to be used for sending. Signal will receive SMS and MMS messages from all sim cards and will display which sim card or phone number the message was addressed to. If you enable the SMS and MMS option, Signal will be used by Android as default app to handle incoming SMS and MMS. The corresponding configuration option can be found in the settings of the Signal app under "SMS and MMS". You can optionally configure Signal as default messenging app. It does not matter which sim card, wireless network etc is providing the connection. As with single sim usage, sending and receiving these messages requires an internet connection. This means all encrypted messages are addressed from and to the one phone number that you chose to register with the Signal app. You can then use Signal to send and receive encrypted messages, as you would do on a single sim phone. Sending and Receiving Encrypted Messages: Registration: Register Signal with one of your phone numbers, as you would do on a single sim phone. Installation: Simply install Signal as you would on a single sim phone by downloading it from the Google Play app store. The following steps describe how to install and use Signal on a phone with two or more sim cards: Usage Scenarios Fresh Installation of Signal on a Phone with Multiple Sim Cards Signal can send and receive encrypted messages only from one phone number (i.e., from the phone number that has been registered with the Signal app). ⚠︎ Sending and Receiving Encrypted Messages: Specifically, this is the phone number that has been used in Signal's registration process. Instead, the Signal app may only be registered with one phone number at any time. ✓ Signal can be used to send regular SMS (using any one of multiple sim cards long-pressing the send button allows to choose the sim card to be used) LimitationsĪdditional phone numbers cannot be registered with the Signal app. ✓ Signal can be used to receive regular SMS (using any one of multiple sim cards) ✓ Signal can be used to send and receive encrypted messages (addressed to and from the phone number that was used during registration) ![]() ✓ Signal can be registered with one phone number Signal (previously TextSecure) on Android can be used on dual-sim or multi-sim smartphones, albeit with some limitations regarding use of the additional sim cards. No news yet if the simpler Dual Messenger will eventually show up in other Galaxy devices.Using Signal with Dual Sim or Multi Sim Phones If you don’t have a Galaxy J7 (2017) smartphone but have your Android Nougat Samsung device, you can still use the slightly more complicated Secure Folder feature. You will even be able to use both at the same time in the Multi Window mode. Just enable it and then choose which apps you want to have dual shortcuts. Just go to the Settings > Advanced Features menu. Those apps that already officially support dual (or even multiple) logins will not show up in the list of supported apps of course. Some of the apps that they support include WhatsApp, Facebook, Facebook Messenger, Skype, Snapchat, etc. However, you will probably have to label the two apps differently to avoid confusion. You just use them as you would two different apps. You’ll be seeing two shortcuts of the same app and you just have to tap on whichever you want to use at the moment. Basically, what it does is to install a separate copy of the app on your device so you can sign in with a different app than in the original copy of the app. This feature is called, obviously, Dual Messenger and will be found in all Galaxy J7 (2017) devices.
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