Thursday Jun 20, 2024

Note Carrier

Developer’s Description

What are the 3 types of software?

--Computers are managed by software. Software may be divided into three categories: system, utility, and application.

What is the difference between download and install?

--The act of "downloading" a file is distinct from "installing" it. Instructions to utilize the downloaded data to modify your computer are "installing" the file. The file does not alter or be updated if installation is not performed.

What is software used for?

--Software is a collection of instructions, data, or computer programs used to run machines and carry out certain activities. It is the antithesis of hardware which refers to a computer external components. A device running programs, scripts, and applications are collectively referred to as "software" in this context.
Note Carrier

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By Note Carrier
Note Carrier software–is a modern solution to contemporary problems of a large amount of information that you want to keep in mind and recall it at the right time. Together with the Note Carrier you no longer have to think about everyday tasks that must to do so. Using Note Carriers software you can organize information or just write down all you need using quick add reminders by hot keys. That way important information will never be lost. Software for creating notes and reminders Note Carrier has a simple but functional interface with which you can find out in less than a minute, and to which you can adjust and evaluate its merits after add a few reminders.

Carrier Configuration

Android 6.0 and higher include a capability for privileged apps to provide carrier-specific configuration to the platform. This functionality, based on the UICC Carrier Privileges introduced (Lollipop MR1), allows carrier configuration to be moved away from the static configuration overlays and gives carriers and OEMs the ability to dynamically provide carrier configuration to the platform through a defined interface.

A properly signed carrier app can either be preloaded in the system image, installed automatically, or manually installed through an app store. The app is queried by the platform to provide configuration for settings including:

  • Roaming/nonroaming networks
  • Visual voicemail
  • SMS/MMS network settings
  • VoLTE/IMS configurations

The determination of what values to return is entirely up to the carrier app and can be dynamic based on detailed information passed to the app through the platform.

The key benefits of this approach are:

  • Dynamic configuration – Support for concepts like non-MCCMNC derived configuration, for example, mobile virtual network operators (MVNOs) or customer opt in to extra services.
  • Support for devices sold through any channel – For example, an open market phone can be automatically configured with the right settings by downloading an app from an app store.
  • Security – Privilege to provide this configuration is given only to apps signed by the carrier.
  • Defined API – Previously this configuration was stored mostly in internal XML overlays within the framework and not through a public API. The carrier config API in Android 6.0 is public and well defined.

The carrier configuration supplied by this feature is a set of key-value pairs that change various telephony-related behaviors in the platform.

The set of values for a particular device is determined by querying the following components in order:

  1. The carrier app (this is optional, but it’s the recommended location for additional configuration beyond what exists in the Android Open Source Project (AOSP))
  2. The platform config app bundled with the system image
  3. Default values, hardcoded into the framework (equivalent to the behavior prior to Android 6.0)

A generic platform config app is bundled with the system image. This app can supply values for any variables that the regular carrier app doesn’t.

This app’s purpose is to provide some per-network configuration when a carrier app isn’t installed, and carriers/OEMs should make only minimal changes to it in their own images. Instead carriers should provide the separate carrier app for carrier customization, allowing updates to be distributed through avenues such as app stores.

The carrier app in question must be signed with the same certificate found on the SIM card, as documented in UICC Carrier Privileges.

The carrier app is supplied with the following values, enabling it to make a dynamic decision as to what values to return:

  • MCC
  • MNC
  • SPN
  • IMSI
  • GID1
  • GID2
  • Carrier ID

For more information on integrating carrier IDs, see Integrating carrier IDs with CarrierConfig.

The building of the list of key value pairs occurs:

  • When the SIM is loaded (boot, or SIM hot swap)
  • When the carrier app manually triggers a reload
  • When the carrier app gets updated


When the configuration is built, the values contained within it are used to set various values of system configuration, including:

  • Internal framework telephony settings
  • SDK-returned configuration values, for example, in SmsManager
  • App settings like VVM connection values in the Dialer

The list of keys is defined as part of the public SDK and can’t change within the same API level. See the table below for a summary of keys.


  1. Override onLoadConfig to return the values you wish to supply based on the service.carrier.CarrierIdentifier object passed.
  2. Add logic to call notifyConfigChangedForSubId in scenarios where the carrier configuration may change over time (for example, when the user adds extra services to their account).
What is note carrier?
What is Carrier version Samsung?
In general, a carrier phone — also known as a locked phone — is sold through a wireless carrier or a third-party partner (such as Best Buy, for example). … Carrier phones are almost always locked to that carrier; in other words, you can’t buy a phone through Verizon and then immediately take it to AT&T.
a person who delivers mail.

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