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UNIVERGE ST500

UNIVERGE ST500

by NEC Corporation

9 ratings
31 reviews
🔧 Utilities
🌐 Social Networking
Free

Details

  • Released
  • Updated
  • September 4, 2018
  • April 7, 2026

Features

Developer

NEC Corporation
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About

This app allows users to make and receive business calls from their mobile devices as if they were at their desk. It integrates with iOS contacts and offers various call management features, simplifying business communications and potentially reducing mobile call costs.

✓Make and receive business calls from mobile
✓Integrates with iOS phone contacts
✓Call history grouped by contact
✓Hands-free and Bluetooth headset support
✓Video call capabilities
✓Security and encryption via TLS and SRTP
✓Voicemail access and message waiting indicator
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What's New in UNIVERGE ST500

9.0.18002

April 7, 2026

- Minor bug fixes.

User reviews

Most RecentHighest RatedLowest Rated

つかえない

接続中のままつながらない。最悪のアプリ
とも10181210とも10181210

社外内線の機能に疑問

個人所有のスマホで社外内線として使っていますが、着信音の鳴りわけができないので、画面表示を確認しなければ、個人に掛かって来たものか、内線かの判別が出来ない。
また、Wi-Fiの兼ね合いからか、アプリの画面表示は左上に受話器マークが表示されているのにフリーズしているようで、着信が受けられない時が有る。
同様な症状はApple CarPlayに接続した時も現れる事が有り、使い勝手が悪く信頼性に欠ける。
これらの症状は一年前にメーカーに伝えたが、全く改善されない。
通話品質は悪く無いので非常に残念です。
わまらやなさあわまらやなさあ

How to Debug?

There is an option to adjust log level and even to export log files.
But those logs were password protected zips. We could not find any source to provide us a password for that.
So debugging seems quite impossible…
ZeparrrZeparrr

Issue with Apple Car Play

The app interferes with Apple Car Play. It switches audio to the ST500 app as its running in background. There should be an update to make it friendly with Apple Car Play.
Rajat_AroraRajat_Arora

iPhone 6 閃退

It can’t be run @ios 12.
吉利良吉利良
See 26 more reviews

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FAQ

What is UNIVERGE ST500?

UNIVERGE ST500 is a mobile softphone application that allows you to make and receive business calls from your iPhone or iPad as if you were at your desk. It aims to simplify communications and reduce mobile call costs for businesses.

Is UNIVERGE ST500 free to use?

Yes, UNIVERGE ST500 is free to use on compatible NEC Phone systems. However, it requires an activation code from your NEC representative and may need spare license capacity on your phone system.

What devices does UNIVERGE ST500 support?

UNIVERGE ST500 supports iPhone, iPad, and iPod devices. It is compatible with iOS versions and utilizes features like iOS CallKit and PushKit.

Does UNIVERGE ST500 have ads?

No, UNIVERGE ST500 does not contain advertisements. It is a business communication tool designed for professional use without interruptions from ads.

How does UNIVERGE ST500 help reduce costs?

It can save your company money by preventing employees from call-forwarding their desk phones to mobile numbers. Staff can make free internal calls and inexpensive local calls through the softphone instead of using their mobile plan for all calls.

What call features are available in UNIVERGE ST500?

The app supports making and answering calls, call waiting, hold/retrieve, transfer, call park, station hunt groups, call pickup, and voicemail access with message waiting indicators. It also offers call forwarding options.

How is my communication secured with UNIVERGE ST500?

UNIVERGE ST500 provides security and encryption for your calls via TLS and SRTP protocols. This ensures that your business conversations are protected.

What are the voice codecs supported by UNIVERGE ST500?

UNIVERGE ST500 supports a range of voice codecs including Opus, G.722.1, G.711A/μlaw, G.722, and G.729a, ensuring high-quality audio for your calls.