---
title: "Groundwire: VoIP SIP Softphone - Bewertungen, Einnahmen und Downloads in Japan | Apple App Store"
description: "Acrobits Groundwire: Elevate Your Communication  Acrobits, a leader in UCaaS and communication solutions for over 20 years, proudly introduces the Acrobits Groundwire softphone. This top-tier SIP soft"
---

# Groundwire: VoIP SIP Softphone — Japan
> Best softphone SIP dialer

![Groundwire App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/3d/92/c6/3d92c6eb-1ad8-e24b-f097-10b308319119/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [Acrobits](https://apptail.io/de/developer/acrobits-nUjb) (Tschechien)
**Category:** Productivity
**Rating:** 2.5/5 (113 ratings)
**Price:** Free
**Bundle ID:** cz.acrobits.softphone.business
**Store:** Apple App Store
**Country:** Japan
**Version:** 25.3.93 (released 2026-06-26)
**Original Release:** 2010-08-18
**Languages:** Arabic, Bulgarian, Persian, Slovenian, Vietnamese, German, Spanish, English, Indonesian, Italian, Portuguese, Norwegian Bokmål, Polish, Thai, Turkish, Czech, Danish, Russian, Slovak, Swedish, Chinese, Hebrew (modern), French, Korean, Hungarian, Dutch, Japanese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id378503081)
**AppTail Page:** [https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/japan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/japan)

## Groundwire Description
Acrobits Groundwire: Elevate Your Communication

Acrobits, a leader in UCaaS and communication solutions for over 20 years, proudly introduces the Acrobits Groundwire softphone. This top-tier SIP softphone client offers unmatched voice and video call clarity. A softphone designed for both personal and professional use, it seamlessly integrates quality communication with an intuitive interface.

IMPORTANT, PLEASE READ

Groundwire is a SIP Client, not a VoIP service. You must have service with a VoIP provider or PBX that supports use on a standard SIP client to use it.

Choosing the Best Softphone App

Experience robust communication with a leading SIP softphone application. Preconfigured for major VoIP providers, this softphone app guarantees high-quality, secure, and intuitive calling. Perfect for maintaining connections with friends, family, and colleagues, maximizing all aspects of your VoIP experience.

Key Features of the SIP Softphone
- Exceptional Audio Quality: Enjoy crystal clear audio with support for multiple formats including Opus and G.729.
- HD Video Calls: Conduct up to 720p HD video calls, supported by H.264 and VP8.
- Robust Security: Our SIP softphone app ensures private conversations with military-grade encryption.
- Battery Efficiency: Thanks to our efficient push notifications, you can stay connected with minimal battery drain.
- Seamless Call Transition: Our VoIP dialer smoothly switches between WiFi and data plans during calls.
- Softphone Customization: Tailor your SIP settings, UI, and ringtones.
- 5G and Multi-Device Support: Ready for the future, compatible with most mobile operating systems.

Other features included on this robust app include: instant messaging, attended and unattended transfers, group calls, voicemail, and extensive customization for each SIP account. 

More Than Just a VoIP Softphone Dialer

Groundwire softphone offers more than the standard VoIP dialer experience. It’s a comprehensive tool for crystal clear Wi-Fi calling, equipped with robust business VoIP dialer features. It offers a secure and reliable softphone choice with no hidden fees and a one-time cost. Leverage SIP technology for improved call quality. Make this softphone your first choice for dependable, and easy SIP communication.

Download a feature-rich and modern SIP softphone now and be part of a community enjoying the best in voice and SIP calling. Transform your daily communication with our exceptional VoIP softphone app.

## Groundwire Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/81/43/bb/8143bb01-335c-461e-f44a-2148456112ed/mzl.phdfysez.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/89/95/55/899555a1-8e63-43f9-5df3-ad030199f907/mzl.abxvzhzh.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/49/52/3b/49523b80-005a-5cd4-3e68-05027ed055b6/mzl.vhifnaif.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/7e/cd/4d/7ecd4dc1-5da6-c076-f1f4-06fae43edeb5/mzl.wvscpxnf.png/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/03/83/4f/03834fbc-5bd6-04c5-9c94-337365858797/mzl.qtrsrvzf.png/640x960.png)

## Groundwire Rating Breakdown in Japan
- 5 stars: 21 (19%)
- 4 stars: 13 (12%)
- 3 stars: 13 (12%)
- 2 stars: 16 (14%)
- 1 stars: 50 (44%)

## Groundwire Reviews in Japan

### *---- "着信できない"
アプリ導入から数ヶ月は正常に動いていたのですが、現在はアプリを開いていないと着信できません。
端末を切り替えましたがまた、1ヶ月程でバックグラウンドで動かなくなりました。
また、着信履歴にも残らない為まともに使用できません。
-- 竹内秀人, 2024-12-22

### *---- "最悪"
管理画面で登録したユーザー名が表示されない
-- 雪の草, 2024-12-19

### *---- "音声治らない"
こちらの音声が相手にハウリングして
届く。会話にならない
-- なまえしらず, 2024-12-05

### *---- "転送機能はどこへ？"
11月のアプデから転送機能がなくなって非常に困ります。改善お願いします。
-- ブラウニー山崎, 2024-11-28

### *---- "これまでに確認している不具合"
◯転送ボタンが消えて通話の転送ができなくなった┗Ver.5.12.16から発生
◯不定期に設定したアカウント情報が消える
┗Ver.5.9.Xあたりから発生
◯「1001」からの謎着信
┗アプリの問題というよりはソフトフォン全般ではたまに起きる事象
◯モトローラ製のAndroid端末から080始まりの番号へ発信できない
┗現在解消したか不明
◯着信しない（通知されない）
┗一部端末で発生、原因不明。プッシュサーバとの接続が切れる模様
-- 09feb, 2024-11-27

### *---- "The transfer button is missing."
After updating to Groundwire version 5.12.16, the transfer button is no longer displayed. Please address this issue.
-- 吉井ヒロ, 2024-11-27

### *---- "転送がなくなった"
会社で使用していますが、バージョンアップして転送がなくなって、使えたものじゃなくなりました。
-- りおりーー！, 2024-11-27

### ****- "なんやかんやでこれが一番安定している｡"
やや値段が張りましたが、３年間いろいろ試してみて、プッシュ通知が便利だと気づきました。GrandStreamWaveも音声はよかったですが、なんやかんやでGrandwireが一番安定したと実感。

しばらく画面を切り替えるときに音声が途切れるバグがありましたが、アップデートでようやく改善されました。G.729コーデックの課金履歴がいつのまにか消えていたので星4｡
-- 荒金さとみ, 2024-11-11

[View all Groundwire reviews and detailed analytics on AppTail](https://apptail.io/de/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Groundwire In-App Purchases
| Item | Price |
|------|-------|
| ZRTP For Outgoing Calls | ¥4.00 |

## Groundwire Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Bezahlt | Tschechien | Productivity | #1 |
| Top Bezahlt | Neuseeland | Productivity | #1 |
| Top Bezahlt | Japan | Productivity | #1 |
| Top Bezahlt | Belarus | Productivity | #2 |
| Top Bezahlt | Ungarn | Productivity | #2 |
| Top Bezahlt | Saudi-Arabien | Productivity | #2 |
| Top Bezahlt | Kanada | Productivity | #3 |
| Top Bezahlt | Spanien | Productivity | #3 |
| Top Bezahlt | Australien | Productivity | #3 |
| Top Bezahlt | Israel | Productivity | #3 |
| Top Bezahlt | Österreich | Productivity | #3 |
| Top Bezahlt | Rumänien | Productivity | #3 |
| Top Bezahlt | Schweiz | Productivity | #3 |
| Top Bezahlt | Peru | Productivity | #4 |
| Top Bezahlt | Philippinen | Productivity | #4 |
| Top Bezahlt | Vereinigte Arabische Emirate | Productivity | #4 |
| Top Bezahlt | Deutschland | Productivity | #4 |
| Top Bezahlt | Italien | Productivity | #4 |
| Top Bezahlt | Finnland | Productivity | #5 |
| Top Bezahlt | Brasilien | Productivity | #6 |
| Top Bezahlt | Griechenland | Productivity | #6 |
| Top Bezahlt | Kolumbien | Productivity | #7 |
| Top Bezahlt | Dänemark | Productivity | #8 |
| Top Bezahlt | Ukraine | Productivity | #8 |
| Top Bezahlt | Japan | Overall | #8 |
| Top Bezahlt | Vereinigtes Königreich | Productivity | #9 |
| Top Bezahlt | Indonesien | Productivity | #11 |
| Top Bezahlt | Indien | Productivity | #13 |
| Top Bezahlt | Libanon | Productivity | #13 |
| Top Bezahlt | Vereinigte Staaten | Productivity | #13 |
| Top Bezahlt | Türkei | Productivity | #14 |
| Top Bezahlt | Neuseeland | Overall | #15 |
| Top Bezahlt | Pakistan | Productivity | #18 |
| Top Bezahlt | Tschechien | Overall | #20 |
| Top Bezahlt | Belarus | Overall | #20 |
| Top Bezahlt | Polen | Productivity | #22 |
| Top Bezahlt | Aserbaidschan | Productivity | #23 |
| Top Bezahlt | Italien | Overall | #23 |
| Top Bezahlt | Südafrika | Productivity | #24 |
| Top Bezahlt | Spanien | Overall | #25 |
| Top Bezahlt | Frankreich | Productivity | #26 |
| Top Bezahlt | Ägypten | Productivity | #26 |
| Top Bezahlt | Nigeria | Productivity | #27 |
| Top Bezahlt | Ungarn | Overall | #28 |
| Top Bezahlt | Israel | Overall | #29 |
| Top Bezahlt | Kasachstan | Productivity | #32 |
| Top Bezahlt | Dominikanische Republik | Productivity | #33 |
| Top Bezahlt | Kuwait | Productivity | #33 |
| Top Bezahlt | Rumänien | Overall | #37 |
| Top Bezahlt | Portugal | Productivity | #38 |
| Top Bezahlt | Finnland | Overall | #39 |
| Top Bezahlt | Belgien | Productivity | #39 |
| Top Bezahlt | Saudi-Arabien | Overall | #41 |
| Top Bezahlt | Deutschland | Overall | #42 |
| Top Bezahlt | Argentinien | Productivity | #46 |
| Top Bezahlt | Irland | Productivity | #48 |
| Top Bezahlt | Kanada | Overall | #48 |
| Top Bezahlt | Schweiz | Overall | #51 |
| Top Bezahlt | Österreich | Overall | #52 |
| Top Bezahlt | Vereinigte Arabische Emirate | Overall | #55 |
| Top Bezahlt | Niederlande | Productivity | #57 |
| Top Bezahlt | Peru | Overall | #59 |
| Top Bezahlt | Kolumbien | Overall | #61 |
| Top Bezahlt | Ecuador | Productivity | #62 |
| Top Bezahlt | Vietnam | Productivity | #67 |
| Top Bezahlt | Philippinen | Overall | #68 |
| Top Bezahlt | Australien | Overall | #80 |
| Top Bezahlt | Thailand | Productivity | #80 |
| Top Bezahlt | Singapur | Productivity | #87 |
| Top Bezahlt | Griechenland | Overall | #90 |
| Top Bezahlt | Schweden | Productivity | #93 |
| Top Bezahlt | Taiwan | Productivity | #93 |
| Top Bezahlt | Brasilien | Overall | #94 |
| Top Bezahlt | Mexiko | Productivity | #99 |
| Top Bezahlt | Malaysia | Productivity | #106 |
| Top Bezahlt | Chile | Productivity | #117 |
| Top Bezahlt | Ukraine | Overall | #120 |
| Top Bezahlt | Indien | Overall | #124 |
| Top Bezahlt | Türkei | Overall | #132 |
| Top Bezahlt | Vereinigtes Königreich | Overall | #140 |
| Top Bezahlt | Südkorea | Productivity | #141 |
| Top Bezahlt | Indonesien | Overall | #165 |
| Top Bezahlt | Libanon | Overall | #166 |
| Top Bezahlt | Vereinigte Staaten | Overall | #167 |
| Top Bezahlt | Dänemark | Overall | #174 |
| Top Bezahlt | Norwegen | Productivity | #177 |
| Top Bezahlt | Pakistan | Overall | #227 |

## Groundwire Discovered Keywords
- calibur
- voip sip softphone

## Apps Similar to Groundwire
- [Zoiper Lite voip soft phone](https://apptail.io/de/app/zoiper-lite-voip-soft-phone-hqb/japan)
- [UISP Mobile](https://apptail.io/de/app/uisp-mobile-KZK/japan)
- [kintone](https://apptail.io/de/app/kintone-KSP/japan)
- [電子印鑑GMOサイン](https://apptail.io/de/app/gmo-uIab/japan)
- [Bria - VoIP Softphone](https://apptail.io/de/app/bria-voip-softphone-Uwcb/japan)
- [Zoiper Premium voip soft phone](https://apptail.io/de/app/zoiper-premium-voip-soft-phone-VDcb/japan)
- [Cloud Softphone](https://apptail.io/de/app/cloud-softphone-WDcb/japan)
- [Sangoma Talk](https://apptail.io/de/app/sangoma-talk-YDcb/japan)
- [MiiTel Phone Mobile](https://apptail.io/de/app/miitel-phone-mobile-ldlb/japan)
- [CLINQ](https://apptail.io/de/app/clinq-hbzl/japan)

## Groundwire Available In
- [Japan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/japan)
- [Vereinigte Staaten](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/united-states)
- [Deutschland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/germany)
- [Kanada](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/canada)
- [Vereinigtes Königreich](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/united-kingdom)
- [Schweiz](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/switzerland)
- [Australien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/australia)
- [Griechenland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/greece)
- [Niederlande](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/netherlands)
- [Türkei](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/turkey)
- [Ukraine](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/ukraine)
- [Italien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/italy)
- [Spanien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/spain)
- [Frankreich](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/france)
- [Brasilien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/brazil)
- [Südafrika](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/south-africa)
- [Belgien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/belgium)
- [Polen](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/poland)
- [Norwegen](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/norway)
- [Taiwan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/taiwan)
- [Tschechien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/czechia)
- [Österreich](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/austria)
- [Mexiko](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/mexico)
- [Rumänien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/romania)
- [Philippinen](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/philippines)
- [Ungarn](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/hungary)
- [Indien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/india)
- [Thailand](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/thailand)
- [Dänemark](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/denmark)
- [Bulgarien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/bulgaria)
- [Kasachstan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/kazakhstan)
- [Armenien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/armenia)
- [Kolumbien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/colombia)
- [Peru](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/peru)
- [Zypern](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/cyprus)
- [Saudi-Arabien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/saudi-arabia)
- [Argentinien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/argentina)
- [Ecuador](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/ecuador)
- [Israel](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/israel)
- [Malta](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/malta)
- [Belarus](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/belarus)
- [Ägypten](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/egypt)
- [Irland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/ireland)
- [Südkorea](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/south-korea)
- [Libanon](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/lebanon)
- [Litauen](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/lithuania)
- [Vereinigte Arabische Emirate](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/united-arab-emirates)
- [Mauritius](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/mauritius)
- [Nigeria](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/nigeria)
- [Portugal](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/portugal)
- [Schweden](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/sweden)
- [Singapur](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/singapore)
- [Slowakei](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/slovakia)
- [Uruguay](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/uruguay)
- [Kuwait](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/kuwait)
- [Malaysia](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/malaysia)
- [Brunei Darussalam](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/brunei)
- [Jamaika](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/jamaica)
- [Island](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/iceland)
- [Nepal](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/nepal)
- [Neuseeland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/new-zealand)
- [Oman](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/oman)
- [Panama](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/panama)
- [Indonesien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/indonesia)
- [Kroatien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/croatia)
- [Pakistan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/pakistan)
- [Grenada](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/grenada)
- [Bermuda](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/bermuda)
- [Katar](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/qatar)
- [Finnland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/finland)
- [Estland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/estonia)
- [Aserbaidschan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/azerbaijan)
- [Usbekistan](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/uzbekistan)
- [Slowenien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/slovenia)
- [Vietnam](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/vietnam)
- [Kaimaninseln](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/cayman-islands)
- [Algerien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/algeria)
- [Sri Lanka](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/sri-lanka)
- [Tunesien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/tunisia)
- [Luxemburg](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/luxembourg)
- [Lettland](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/latvia)
- [Madagaskar](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/madagascar)
- [Nordmazedonien](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/north-macedonia)
- [Dominikanische Republik](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/dominican-republic)
- [Chile](https://apptail.io/de/app/groundwire-voip-sip-softphone-XDcb/chile)

---

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