# AustenTel ACS — Your business phone, anywhere

> SIP softphone app for HD voice/video calls and free inter-user communication. (iPhone/iPad app by Austen Consultants, LLC.)

- Source: https://appshunter.io/ios/app/austentel-acs/id6444466517 (this page in markdown: same URL + `.md`)
- Developer: [Austen Consultants, LLC](https://appshunter.io/developer/1654860193)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2022-11-24
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/austentel-acs/id6444466517/reviews.md

## What is 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.

## Key features

- SIP softphone functionality
- Push notifications
- HD voice and video support
- Free calling between app users

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/austentel-acs/id6444466517/reviews.md

### 5/5 — School district phone administrator

*2023-03-08*

Simply the finest business phone VoIP service anywhere. This app provides crystal clear voice.

## Frequently asked questions about AustenTel ACS

### What devices does AustenTel ACS support?

AustenTel ACS is available on iPhone and iPod devices. It was last updated on September 26, 2023, with version 1.5.

### Is AustenTel ACS free to use?

Yes, AustenTel ACS is completely free to download and use. There are no in-app purchases or subscription fees associated with it.

### Does AustenTel ACS have ads?

No, AustenTel ACS does not contain any advertisements. Users can enjoy an ad-free communication experience.

### What is the age rating for AustenTel ACS?

AustenTel ACS has an age rating of 4+, making it suitable for a wide range of users.

### How often is AustenTel ACS updated?

The app was last updated on September 26, 2023, indicating regular maintenance and potential feature additions. The current version is 1.5.

### What are the main features of AustenTel ACS?

AustenTel ACS functions as a SIP softphone, supporting push notifications, HD voice and video, and enabling free calling between app users.

### What is the user sentiment for AustenTel ACS?

Based on the available data, AustenTel ACS has received excellent user feedback, with an average rating of 5.0 stars from 3 ratings.

## Version history (last 5 releases)

### 2.0.0 — 2026-08-31

ACS 2.0 is a complete rebuild of the AustenTel app:

• All-new calling engine — your work extension rings like a native call, even when the app is closed
• Visual voicemail with automatic transcription
• Team messaging with photo sharing
• Company directory with live presence
• Organization-wide instant alerts (where enabled by your admin)
• Modern security throughout (TLS + SRTP)

After updating, sign in once with the setup code from your administrator.

### 1.5 — 2023-09-26

Updated DFKS support
Fixed audio quality issue when using the g722 codec
Fixed issue where speaker staying enabled for incoming calls

Fixed issue with missing quickdials
Improved auto-answer form in settings
Improved the behavior of the history removal feature

### 1.3 — 2023-04-27

Adjustment of permission process

### 1.1 — 2023-01-10

Stability improvements

### 1.0 — 2022-11-24

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*