Smart PBX v3.1.2
APK · 23 MB · version code 312 · Android 9+ · uploaded Feb 9, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v3.3.2, uploaded Jun 30, 2026 — about 5 months after this one.
- Size: this file is 23 MB; the latest is 34.6 MB (11.6 MB larger).
- Android: this version needs Android 9+; the latest needs Android 11+. Use this one if your device runs an older Android release.
- The latest version asks for 2 more permissions: Detect screen capture, Detect screen recording.
File information
- Version
- v3.1.2 (312)
- Uploaded
- Feb 9, 2026
- Size
- 23 MB
- Requires
- Android 9+ (API 28)
- CPU support
- ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- d2c59a941cb7efaa68805bf8e62343e2
- Signing certificate (SHA-1)
- D7:8D:41:72:C1:A6:D6:52:E4:14:E2:BC:A5:DA:02:6B:16:4A:60:D2
- Signed by
- CN=NTT Communications Corporation, OU=Business Network Services Division, O=NTT Communications Corporation, L=Chiyoda-ku, ST=Tokyo, C=JP
- File name
- com-ntt-voip-android-smartpbx-312-73489256-d2c59a941cb7efaa68805bf8e62343e2.apk
- Package
- com.ntt.voip.android.smartpbx
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v3.1.2
・軽微な修正を行いました。
（2025/8/27）
・軽微な修正を行いました。
（2025/6/25）
・Android15に対応しました。
・軽微な修正を行いました。
（2025/5/21）
・一部不具合を修正しました。
・軽微な修正を行いました。
（2025/3/25）
・通話中の各種機能ボタンの位置を変更しました。
・電話帳画面に検索バーを追加しました。
・一部不具合を修正しました。
・軽微な修正を行いました。
（2025/1/15）
・連携可能な電話帳サービスに「moconavi」を追加しました。
・軽微な修正を行いました。
（2024/6/24）
・Android14に対応しました。
・接続状態ポップアップ表示機能を追加しました。
（2024/3/28）
・通話中画面の操作メニュー表示を変更しました。
・軽微な修正を行いました。
・一部不具合を修正しました。
（2024/2/27）
・Android14環境で確認された一部の問題に対応しました。
（2023/9/27）
Permissions (38)
This version requests 38 permissions, 12 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Call phone Sensitive android.permission.CALL_PHONE
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Location in the background Sensitive android.permission.ACCESS_BACKGROUND_LOCATION
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Write contacts Sensitive android.permission.WRITE_CONTACTS
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Advertising ID com.google.android.gms.permission.AD_ID
- Control vibration android.permission.VIBRATE
- Download without notification android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
- Foreground service location android.permission.FOREGROUND_SERVICE_LOCATION
- Foreground service microphone android.permission.FOREGROUND_SERVICE_MICROPHONE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Internal broadcast protection (app-defined) com.ntt.voip.android.smartpbx.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Manage own calls android.permission.MANAGE_OWN_CALLS
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) com.ntt.voip.android.smartpbx.permission.C2D_MESSAGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
- Show notifications android.permission.POST_NOTIFICATIONS
- Use biometric hardware android.permission.USE_BIOMETRIC
- Use credentials android.permission.USE_CREDENTIALS
- Use fingerprint hardware android.permission.USE_FINGERPRINT
- Use full screen intent android.permission.USE_FULL_SCREEN_INTENT
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Feb 9, 2026.
- Certificate issued to “NTT Communications Corporation” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks
- Developer signature verified Feb 9, 2026
- Validated against Google Play Feb 9, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (5 other versions compared). AAPKs doesn't scan files itself.
How to install Smart PBX on Android 9+
You'll need about 46.1 MB of free space.
- Download the APK — tap Download APK above (23 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-ntt-voip-android-smartpbx-312-73489256-d2c59a941cb7efaa68805bf8e62343e2.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be d2c59a941cb7efaa68805bf8e62343e2. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Smart PBX — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 9+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.