CelTech Call
Calls, video calls and messages over the CelTech network, at home on Wi‑Fi or on CelTech mobile data.
Android
Version 0.3.2, for Android 8 and later.
CelTechCall-0.3.2-arm64-v8a.apk · 27.4 MB
SHA-256 ba00a46ceb02077714d8e19b56fe8f5392c234e010cd91d9aab1f47f257d956a
Older phone (32-bit)? Download the armv7 version.
Installing
- Tap the download button on your phone and open the file.
- If Android asks, allow your browser to install apps (“Install unknown apps”).
- Open CelTech Call and scan the QR code on your CelTech account sheet, or type your number and password.
- When asked, let the app run in the background so it can ring for calls.
Updates install over the top of the previous version; you stay signed in.
iPhone and iPad
Coming soon. The iOS app is in testing and will be available through Apple’s TestFlight first.
Until then, iPhones can use any SIP app (for example Zoiper) with the server details on your account sheet.
What it does
- Voice and video calls between CelTech phones
- Text messages, with replies from the notification
- Voicemail, call history and contacts
- Hold, call waiting, transfer and keypad during calls
- Works on the home Wi‑Fi and on CelTech mobile data
Source code
CelTech Call is built on the Linphone SDK, licensed under the GNU Affero General Public License v3. The complete source code of each released version is available here: