Smart Biz Line - Teacher Phone

Teacher Phone enables you to make office call anytime, anywhere.

HONG KONG TELECOMMUNICATIONS (HKT) LIMITED · com.pccw.mobile.teacherphone

Not rated yet 1K+ downloads v3.4.172 209.7 MB Android 6.0+ PEGI 3 · Everyone

Download APK 209.7 MB All versions

Signature matches the Google Play version Details

Smart Biz Line - Teacher Phone screenshot 1

Smart Biz Line - Teacher Phone screenshot 2

At a glance

Latest version: v3.4.172 (19)
Updated: Oct 2, 2026 (9 days ago)
APK size: 209.7 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Communication (app)
Listed since: Oct 30, 2020 (at least)
Permissions: 39 (13 sensitive)
Website: hkt-smartline.com/upgrade
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Smart Biz Line - Teacher Phone is an app by HONG KONG TELECOMMUNICATIONS (HKT) LIMITED in the Communication category, listed since at least October 2020. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 3.4.88, the APK grew from 55.6 MB to 209.7 MB and the minimum Android version rose from 4.2 to 6.0. It asks for 39 permissions, 13 of them sensitive, including camera, record audio and read contacts. Compared with version 3.4.109, it adds 5 new permissions (“Bluetooth advertise”, “Bluetooth connect”, “Bluetooth scan” and 2 more) and drops 1 (“Bluetooth”). The app can read the advertising ID that ad and analytics services use.

What's new in v3.4.172

Bug fixed

Description

From the listing uploaded by “appupdater”.

Smart Biz line - Teacher Phone enables you to manage your business line anytime, anywhere. You can always keep connected with your business partners and client as if you were staying in your office. Features Mobile office Now you can make office call by your Android phone even if you are out of office. Office number display You can always show your school's office number to callers.

Version history

4 versions are listed, going back to v3.4.88. Since v3.4.96 it requires Android 6.0+.

v3.4.172 LATEST Oct 2, 2026 209.7 MB TRUSTED v3.4.109 Sep 6, 2026 149.3 MB TRUSTED v3.4.96 Jun 10, 2024 55.4 MB TRUSTED v3.4.88 Jul 21, 2023 55.6 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 2, 2026.
Certificate issued to “PCCW” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Oct 2, 2026
Validated against Google Play Oct 2, 2026
Signed byCN=PCCWMobile, OU=PCCWMobile, O=PCCW, L=Hong Kong, ST=Hong Kong, C=CN
Signing certificate (SHA-1)A4:79:ED:05:A2:CC:46:9D:DF:C8:9C:FD:40:75:C6:02:F2:0C:E5:BC
File MD5e092ee61b2d2d5c79050bcd7936f192b
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (39)

Smart Biz Line - Teacher Phone requests 39 permissions, 13 of them sensitive.

Bluetooth advertise Sensitive android.permission.BLUETOOTH_ADVERTISE
Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
Call phone Sensitive android.permission.CALL_PHONE
Camera Sensitive android.permission.CAMERA
Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read contacts Sensitive android.permission.READ_CONTACTS
Read phone numbers Sensitive android.permission.READ_PHONE_NUMBERS
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
Write settings Sensitive android.permission.WRITE_SETTINGS
Access notification policy android.permission.ACCESS_NOTIFICATION_POLICY
Advertising ID com.google.android.gms.permission.AD_ID
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi multicast state android.permission.CHANGE_WIFI_MULTICAST_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Control vibration android.permission.VIBRATE
Disable keyguard android.permission.DISABLE_KEYGUARD
Foreground service microphone android.permission.FOREGROUND_SERVICE_MICROPHONE
Foreground service phone call android.permission.FOREGROUND_SERVICE_PHONE_CALL
Full network access android.permission.INTERNET
Get tasks android.permission.GET_TASKS
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Manage own calls android.permission.MANAGE_OWN_CALLS
Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
Modify phone state android.permission.MODIFY_PHONE_STATE
Prevent the device from sleeping android.permission.WAKE_LOCK
Read privileged phone state android.permission.READ_PRIVILEGED_PHONE_STATE
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
Show notifications android.permission.POST_NOTIFICATIONS
Ssensor android.permission.SSENSOR
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

Required hardware & features

Bluetooth android.hardware.bluetooth
Basic touch input android.hardware.faketouch
Location android.hardware.location
Microphone android.hardware.microphone
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Smart Biz Line - Teacher Phone APK: questions and answers

Is there a version of Smart Biz Line - Teacher Phone for older Android phones?

The current version needs Android 6.0 or later. Version 3.4.88 is the newest listed build that installs on Android 4.2 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.4.88 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Smart Biz Line - Teacher Phone APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is e092ee61b2d2d5c79050bcd7936f192b.