AustenTel ACS vs Telvatec Calling
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AustenTel ACS
Manage your business phone system from your mobile device. Make and receive calls with your work extension, access transcribed voicemails, and message colleagues. Stay connected and productive wherever you are.
- Work extension on mobile
- HD voice calls
- Visual voicemail with transcription
- Team messaging
- Company directory
- Call history sync
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AustenTel ACS puts your organization's phone system in your pocket. Make and receive calls with your work extension, check voicemail with automatic transcription, message teammates, and stay reachable wherever work takes you. ACS is the AustenTel Advanced Communication System — a carrier-grade, cloud-hosted business phone platform. The ACS app connects to your organization's ACS service, so your business extension rings your iPhone like a native call. FEATURES • Your work extension on your iPhone — incoming calls arrive like any other call, even when the app is closed • HD voice with secure signaling and media (TLS + SRTP) • Visual voicemail with automatic transcription • Team messaging with photo attachments • Company directory with live presence • Call history synced across your devices • Hold, transfer, and conference controls • Organization-wide instant alerts (where enabled by your admin) GETTING STARTED The ACS app is for organizations using AustenTel ACS phone service. Your administrator provisions your extension and sends you a setup code or QR — enter or scan it and you're connected. There is no self-serve account setup. Don't have ACS yet? Learn more at austentel.com or call 800.817.7845. The ACS app requires an active AustenTel ACS extension.
Telvatec Calling
Make reliable, crystal-clear international calls worldwide at affordable rates. Enjoy secure communication with no hidden fees or dropped calls, connecting you to friends, family, and businesses globally.
- Crystal-clear international calling
- Unmatched reliability
- Affordable rates
- Secure communication
- No hidden fees
- No dropped calls
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Experience crystal-clear international calling with unmatched reliability—only with Telvatec. Designed for global citizens, Telvatec connects you to loved ones, friends and businesses worldwide with unbeatable voice quality and affordable rates. Whether you're calling Africa, Asia, Europe, or beyond, Telvatec ensures your voice is heard. No hidden fees. No dropped calls. Just high-quality conversations powered by Telvatec’s smart connectivity and commitment to secure communication.
Screenshots
Verdict
The clearest difference is update cadence: AustenTel ACS at every 6 weeks against Telvatec Calling's every 9 months. Telvatec Calling's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for AustenTel ACS against 5.0 for Telvatec Calling. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
AustenTel ACS ships an update every 6 weeks, Telvatec Calling every 9 months. Both last shipped on October 30, 2026.
| Parameter | AustenTel ACS | Telvatec Calling |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 6 weeks — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Austen Consultants, LLC | TELVATEC LLC |
Customer experience
AustenTel ACS
Telvatec Calling
In-app purchases
AustenTel ACS
No in-app purchases
Telvatec Calling
No in-app purchases
Questions
Is AustenTel ACS free?
Is Telvatec Calling free?
Which has better reviews, AustenTel ACS or Telvatec Calling?
Do AustenTel ACS or Telvatec Calling have ads?
Which is updated more often, AustenTel ACS or Telvatec Calling?
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