---
description: SIP.USを実際に使用したユーザーのレビューから、製品の機能や価格、メリットデメリットをご覧いただけます。類似製品との比較も簡単、ぴったりのSaaSが見つかるはず！
image: https://gdm-localsites-assets-gfprod.imgix.net/images/capterra/og_logo-e5a8c001ed0bd1bb922639230fcea71a.png?auto=format%2Cenhance%2Ccompress
title: SIP.USとは？ | 機能や料金、導入事例をご紹介【キャプテラ】
---

現在地表示: [ホーム](/) > [IP電話アプリ](/directory/30940/voip/software) > [SIP.US](/software/186600/sip-us)

# SIP.US

Canonical: https://www.capterra.jp/software/186600/sip-us

ページ：1 / 5\
次へ: [次ページ](https://www.capterra.jp/software/186600/sip-us?page=2)

> SIP.USは、インターネットを介した構内交換機 (IP-PBX) システムおよびアナログまたはデジタル電話アダプター用のビジネス・クラスSession Initiation Protocol (SIP) トランク・サービス・プロバイダーです。無料インスタント・トライアル。
> 
> 評価：85人のユーザーによる評価は**4.7/5**。**おすすめ度**で最高の評価。

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## 概要

### SIP.USの対象ユーザー

SIP.USは、多様な市場にわたって何千もの顧客に使用されています。SIPトランクの力を活用したいと考えている人なら誰でも使用することができます。

## 簡単な統計と評価

| 測定基準 | 評価 | 詳細 |
| **総合評価** | **4.7/5** | 85 レビュー |
| 使いやすさ | 4.5/5 | レビュー全体に基づく |
| カスタマー・サポート | 4.6/5 | レビュー全体に基づく |
| 価格の妥当性 | 4.6/5 | レビュー全体に基づく |
| 機能 | 4.5/5 | レビュー全体に基づく |
| おすすめ率 | 90% | (9/10 おすすめ度) |

## 企業情報

- **キャプテラについて**: BCM One

## ビジネスコンテキスト

- **価格プラン**: $24.95
- **価格モデル**:  (無料のトライアル)
- **対象となる企業**: 自営業, 2～10, 11～50, 51～200, 201～500, 501～1,000, 1,001～5,000, 5,001～10,000, 10,000+
- **デプロイとプラットフォーム**: クラウド、SaaS、ウェブベース
- **サポートされる言語**: 英語
- **利用可能な国**: アメリカ合衆国, イギリス, インド, オーストラリア, カナダ, ドイツ, ブラジル, メキシコ, 中国, 日本

## 機能

- SIPトランキング
- 通話モニタリング
- 通話ルーティング
- 通話追跡

## 統合 (合計3件)

- 3CX
- Asterisk
- VICIdial

## サポートのオプション

- メール/ヘルプデスク
- FAQ/フォーラム
- ナレッジベース
- 電話サポート
- チャット対応有

## Category

- [IP電話アプリ](https://www.capterra.jp/directory/30940/voip/software)

## 代替製品

1. [Telnyx Suite](https://www.capterra.jp/software/173804/telnyx) — 4.8/5 (195 reviews)
2. [Zoom Phone](https://www.capterra.jp/software/208535/zoom-phone) — 4.5/5 (243 reviews)
3. [Twilio](https://www.capterra.jp/software/180158/twilio-communications-platform) — 4.4/5 (501 reviews)
4. [Aircall](https://www.capterra.jp/software/144486/aircall) — 4.2/5 (458 reviews)
5. [Dialpad](https://www.capterra.jp/software/190976/dialpad-sell) — 4.2/5 (562 reviews)

## レビュー

### "Great for trunks and hosted Asterisk" — 5.0/5

> **Paul** | *2019年6月4日* | コンピュータ・ソフトウェア | おすすめ評価：10.0/10
> 
> **良いポイント**: We have had a hosted asterisk service with SIP.US for almost 8 years and we liked that we have been able to add custom code to our service to be able to better meet our needs
> 
> **改善点**: There hasn't been anything that I would describe as a con.
> 
> It provides an automated IVR service for our clients, and routes inbound calls to our operators.

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### "Mostly good, some missing features" — 5.0/5

> **Kimani** | *2019年6月5日* | コンピュータ・ソフトウェア | おすすめ評価：7.0/10
> 
> **良いポイント**: - Ease of integration with the PBX (we use Asterisk)&#10;- Clear user guide and documentation
> 
> **改善点**: - Mostly good for calls made to North American and western-European numbers. Not so good for international calls, especially to some countries - India, Russia and some Eastern-European countries (Romania, Bulgaria, Armenia come to mind).&#10;&#10;Some providers in these countries seem to detect that our calls are Voip calls and block them. And we have raised this issue with SIP.us, but received no feedback. This means we have to spend more money making phone calls via Skype. And Skype calls are expensive but always go thru, unlike calls made via Sip.us trunk lines.&#10;&#10;Now, I understand you may say it is not your fault that telcos are blocking calls made thru SIP. But from my PoV as a customer, what I see is simply that Skype-made calls work where SIP-made calls are failing to go through. So what is Skype doing that SIP cannot?
> 
> Overall we are very happy with the SIP.us solution. We have contractors all over the world, so having the ability to call people all over

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### "UNSATIFIED CUSTOMER" — 1.0/5

> **RODNEY** | *2025年6月27日* | 経理 | おすすめ評価：0.0/10
> 
> **良いポイント**: They merge successfully with Zoiper other than that so far i have complete wasted my time waiting for the services i paid for.
> 
> **改善点**: I Paid for the services and i even wrote a ticket because their services still have me in demo mode after payment was received. I tried calling the customer service number, guy male who answered stated he can't assist me with the setup of my account so far, I'm definitely dissatisfied
> 
> so far terrible service, with little to no feedback. This is definitely not what I was hoping for in a company.

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### "Fantastic SIP Provider With Excellent Technical Support" — 5.0/5

> **David** | *2019年6月5日* | 通信 | おすすめ評価：10.0/10
> 
> **良いポイント**: - Completely self-service website.&#10;- Fantastic technical support that responds within minutes, usually.&#10;- Automated number port-in process.&#10;- Huge inventory of DIDs across the country.&#10;- SMS service is available on most DIDs.
> 
> **改善点**: - Website is a little outdated.&#10;- Pricing is just fair, not great.
> 
> We use SIP.US as the phone provider for our office's 40-extension phone system. We currently have toll-free and local numbers (DIDs) with them as well as some fax numbers.

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### "SIP.US VOIP Service Review" — 5.0/5

> **Jason** | *2022年5月19日* | 病院、ヘルスケア | おすすめ評価：10.0/10
> 
> **良いポイント**: This service was very easy to setup and has been rock solid. There was a complete guide on how to setup our Grandstream UCM PBX with SIP.US and SIP.US also provided a phone number with the service. They have redundancy options and the quality of the phone calls are just fantastic.
> 
> **改善点**: The toll-free cost per minute could be cheaper but really that's a minor issue... the overall experience has been excellent.

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