MTN NAMCHAT

MTN NAMCHAT



免費Offers In-App Purchases

4.43.0for iPhone, iPad and more
Seecrypt
Developer
186.4 MB
Size
2023年04月28日
Update Date
Business
Category
4+
Age Rating
Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
MTN NAMCHAT 螢幕截圖
MTN NAMCHAT 海報MTN NAMCHAT 海報MTN NAMCHAT 海報MTN NAMCHAT 海報
MTN NAMCHAT 海報MTN NAMCHAT 海報MTN NAMCHAT 海報MTN NAMCHAT 海報

About MTN NAMCHAT

MTN NAMCHAT enables security for communications that exceeds the standards for US Top Secret and incorporates Post-Quantum Protection.

Secure Instant Messaging
MTN NAMCHAT provides secure instant messaging with the ability to send photos, videos, voice notes, and large files of any kind. All messages and files are end-to-end encrypted with a new key generated for every message or file sent. MTN NAMCHAT’s enhanced Data at Rest encryption protects all files and media stored within the app.​

Group messaging for collaboration and file-sharing can be created locally by the user on their device.

Secure Voice and Video Calls
MTN NAMCHAT voice and video calls are fully encrypted end-to-end, and routed through the mobile device’s data connection with signal obfuscation. Advanced codecs ensure HD quality with minimal data and battery use, even across low-bandwidth mobile or wireless networks.

Secure calls can be made over any IP-based network, including 5G, 4G/LTE, 3G/HSDPA, 2G/EDGE, WiFi, and satellite networks, with full authentication of all parties on a call to eliminate the risks of impersonation through Caller ID spoofing.

Secure Conference Calls
A conference bridge can be established instantly from the MTN NAMCHAT app by creating a group of contacts and hitting the call button. With only mutually authenticated, authorised users, MTN NAMCHAT conference calls eliminate the need for participant PINs and passwords.

End-to-End Encryption
MTN NAMCHAT uses double-layer encryption in an end-to-end configuration, with a new key for every call and message. The system is modular and adheres to best practice cryptographic standards/protocols, powered by a crypto core that is FIPS 140-2 validated. With MTN NAMCHAT, data is secured end-to-end using Elliptic Curve and Symmetric-Key Cryptography.

For post-quantum protection, the underlying cryptography is overlaid with Supersingular Isogeny Diffie-Hellman Key Exchange (SIDH 751) for voice and video, and Supersingular Isogeny Key Encapsulation (SIKE 751) for messaging and files.

For more information, please visit www.mtnnamchat.com or contact support@mtnnamchat.com for further assistance.
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最新版本4.43.0更新日誌

Last updated on 2023年04月28日
歷史版本
Updates and fixes
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Version History
4.43.0
2023年04月28日
Updates and fixes
4.35.0
2023年03月13日
What's new
Updated to VPhone 24.15.7
4.28.2
2022年12月29日
What's new
Updated to VPhone 24.15.1
Updated application icons
Replaced reachability service by network monitor for detecting network changes

Bug fixes
Fixed an issue where calls are not working properly using a specific bluetooth device
Fixed an issue where bluetooth is not working in some cars
Fixed an issue where sometimes application has UI glitches on chat screen
Fixed an issue where some toggles switches in "Preferences" are not working
Fixed an issue where sending camera generated attachments causes the app to crash when call history is disabled
Fixed an issue where callee receives Busy tone when rejecting a Call
Fixed an issue where DNS cache was causing the app to go offline
4.21.2
2022年12月13日
What's new
Updated to VPhone to 24.13.6
Updated Set PIN Lock screen
Updated export attachment warning text

Bug fixes
Fixed an issue where attachments and calls would fail after a certain amount of calls
Fixed an issue where the app would spam key after login
Fixed an issue where call is ending by itself
Fixed an issue where some messages are not being updated with delivered tick
4.16.2
2022年11月16日
Bug fixes
Fixed an issue where sometimes application does not connect after entering foreground
4.16.0
2022年11月02日
What's new
Updated to VPhone 24.12.16

Bug fixes
Fixed an issue where app crashes while user browsers it after importing backup on fresh install or after clear data
Fixed an issue where app is taking too long to connect, after changing the WiFi
4.12.3
2022年10月20日
What's new
Updated VPhone to 24.12.7
Added a checkbox for not showing again the warning dialog when opening an attachment outside the app

Bug fixes
Fixed UI issues
Fixed video stream issues
Fixed an issue where there is no audio when accepting a video call while recording a video
Fixed an issue where the camera is not activated when answering an video call when the device is locked, or app is closed
Fixed an issue where the incoming video stream is locked in landscape mode if answered with the phone on that mode
Fixed an issue where app crashes when accepting a video call with app on background
Fixed an issue when app crashes after answering a video call when in Low Power Mode on iPhone 12
Fixed an issue where sometimes messages are disappearing
Fixed an issue where the build version's Brand IDs is incorrect when reporting a problem
4.4.14
2022年09月21日
What's new:
- Stability improvements for iOS 16.1
4.4.10
2022年09月06日
Bug Fixes:
- Updating voip push service method
4.4.9
2022年08月08日
What's new
Implemented SRTP cipher settings

Bug issues
Fixed an issue with previous logins data
Fixed an issue where the application crashed when user logs in with mandatory PIN lock
Fixed an issue the application crashed when user logging in with an account that is already logged
4.4.6
2022年08月04日
Bug fixes
Fixed an issue where caller's app sometimes crash when caller accepted the call
Fixed an issue were sometimes audio call is failing
4.4.4
2022年08月01日
What's new
Updated VPhone to version 24.7.4

Bug fixes
Fixed an issue causing video calls to fail when the app is closed
4.4.3
2022年07月25日
What's new:
- In app notifications of messages in conversations other than the one that is open
- Improvements in the code that will slightly increase the app's performance
- Added some useful information in the logs

Bug fixes:
- Fixed one cause of failure when changing the user's profile picture
- Fixed being able to type when the input text was hidden by a voice note preview
- Changed the wording of the error dialog when trying to place a call in offline mode, to better represent the problem
- Fixed an issue that would prevent notifications from showing how many messages the user received
- Fixed not being able to download some profile pictures from windows desktop users
- Stability improvements
4.0.13
2022年05月09日
What's new:
- Convert legacy attachments to federal ones before using them
- Remove the confirm password field on the register page and implement show password feature
- Implement auto sign in after verifying email
- Update supported cipher suites

Bug fixes:
- Fixed an issue that when logging in with a space in the private server the app crashes
- Fixed an issue where Missed call preview message has a capital C in call
- Fixed a memory issue when opening image or video attachment preview
- Fixed an issue when opening the Privacy police link was not working if clicked before opening FAQ
4.0.11
2022年04月13日
What's new:
- Minor improvements on the UI

Bug fixes:
- Fixed issue with opening some types of documents
4.0.2
2022年03月31日
What's new:
- Added more information for expected errors during sign up

Bug fixes:
- Minor UI adjustments
4.0.0
2022年03月20日
What's new:
- Upgraded application's core
3.91.8
2022年01月12日
Bug fixes:
- Fixed an issue with calls not supporting air pods
3.91.4
2021年09月21日
What's new:
- Support for iOS 15
- New settings to enable or disable missed call notifications
- New design on most screens of the app

Bug fixes:
- General stability improvements
- Improvements to call quality and stability
3.85.5
2021年03月04日
What's new:
- Improvements to the onboarding pages
- Improvements to call quality and stability
- Minor improvements to the settings pages
- Support for custom servers that require port specification
- Added status indicator on key exchange messages

Bug fixes:
- Fixed an issue that would prevent calls from starting
- Fixed an issue with presenting the duration of calls that lasted over an hour
- Fixed an issue that would sometimes not present the call banner when navigating out of the call screen
- Fixed an issue that would sometimes prevent a new message banner from appearing
- Fixed some possible crashes
- Fixed a broken link in the end user license agreement
- Fixed not being able to share web pages with the app
- Fixed sometimes not being able to record voice notes
- Minor fixes to the call rating dialog
- Minor UI fixes
3.85.4
2021年02月25日
What's new:
- Improvements to the onboarding pages
- Improvements to call quality and stability
- Minor improvements to the settings pages
- Support for custom servers that require port specification
- Added status indicator on key exchange messages

Bug fixes:
- Fixed an issue that would prevent calls from starting
- Fixed an issue with presenting the duration of calls that lasted over an hour
- Fixed an issue that would sometimes not present the call banner when navigating out of the call screen
- Fixed an issue that would sometimes prevent a new message banner from appearing
- Fixed some possible crashes
- Fixed a broken link in the end user license agreement
- Fixed not being able to share web pages with the app
- Fixed sometimes not being able to record voice notes
- Minor fixes to the call rating dialog
- Minor UI fixes
3.81.6
2020年11月26日
Bug fixes:
- Minor UI adjustments to the user profile screen
- Minor UI adjustments to the messaging screen
- Minor UI adjustments to the call history screen
- Fixed a crash that could happen when receiving group messages
3.81.5
2020年10月30日
Bug fixes:
- Minor UI adjustments to the user profile screen
- Minor UI adjustments to the messaging screen
- Minor UI adjustments to the call history screen
- Fixed a crash that could happen when receiving group messages
3.81.3
2020年10月15日
What's new:
- Updated terms and conditions and privacy policy documents
- Updated our frequently asked questions

Bug Fixes:
- Fixed ringtone settings not opening the correct tone selection
- Fixed a crash that could happen when calling
- Fixed a crash that could happen when closing some settings pages
- Fixed a crash that could happen when unlocking the app with Face ID
- Fixed some layout errors on the messaging screen
- Minor improvements to stability
3.81.2
2020年10月07日
What's new:
- New design for the call screen
- New design for the pin lock screen
- Reorganized the settings screen
- New call history tab
- Minor updates to the messaging screen design

Bug fixes:
- Fixes a crash loop on iOS 14 when sending voice notes
- Fixed some issues with the new iOS 14 CallKit UI
- Fixed not removing activity indicator after removing a member from a group

MTN NAMCHAT FAQ

點擊此處瞭解如何在受限國家或地區下載MTN NAMCHAT。
以下為MTN NAMCHAT的最低配置要求。
iPhone
須使用 iOS 13.0 或以上版本。
iPad
須使用 iPadOS 13.0 或以上版本。
iPod touch
須使用 iOS 13.0 或以上版本。
MTN NAMCHAT支持日文, 英文, 葡萄牙文, 阿拉伯文
MTN NAMCHAT包含應用內購買。 以下為MTN NAMCHAT應用內購買價格清單。
Monthly Subscription
$0.99
Yearly Subscription
$12.99

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