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  • AustenTel ACS screenshot 1
  • AustenTel ACS screenshot 2
  • AustenTel ACS screenshot 3
  • AustenTel ACS screenshot 4

About AustenTel ACS

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.

What’s new

Version 2.0.5 · Updated October 21, 2026

This update makes voicemail easier to manage and improves calling reliability. • Voicemail messages and completed transcriptions refresh automatically while you view your inbox. • Select multiple voicemail messages or use Delete All, with confirmation before deleting. • Add Park Transfer and Park Pull to Favorites on supported ACS systems, and park calls from the transfer screen. • Additional safeguards prevent conflicting parking actions while another call is arriving or a transfer is in progress.

App privacy

The developer, Austen Consultants, LLC, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • User Content: Emails or Text Messages, Photos or Videos, Audio Data
  • Identifiers: User ID, Device ID
  • Usage Data: Other Usage Data

Used for: App Functionality

Alternatives to AustenTel ACS

Looking for apps like AustenTel ACS? Here are 6 similar apps on the App Store. The highest rated is ClearTempo VOIP (5.0/5), and all 6 are free to download.

AustenTel ACS vs. alternatives
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AustenTel ACS 5.0 / 5 (3 ratings) Free October 21, 2026
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