Side by side
BT Cloud Voice vs sipXcom
Both stand on business phone systems. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid AndroidiPhoneMac+2
BT Cloud Voice combines internet calling, routing, voicemail, conferencing, analytics, and collaboration integrations. The tiered plans add features progressively, but the stated 60-month licence commitment is central to purchasing.
Visit BT Cloud Voice Free plan APILinuxSelf-hosted
Choose sipXcom if you want open-source PBX and unified communications functions that can be deployed on one server or distributed across a system. Look elsewhere if you need a free trial or require plug-and-play management for phones outside the identified models.
Visit sipXcomThe facts
| BT Cloud Voice | sipXcom | |
|---|---|---|
| Free plan | No | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Mac, Web, Windows | API, Linux, Self-hosted |
| Lowest paid plan | Basic: £10.52 a month | Free or on request |
| Plans published | 3 | 1 |
| Maker | Not published | Not published |
| Website | business.bt.com | sipfoundry.atlassian.net |
| On business phone systems | #96 of 171 | #18 of 171 |
BT Cloud Voice: what it does well
- Local business numbers and advanced call routing
- Apps for Android, iOS, macOS, web, and Windows
- Optional UK and international call packages
- 24/7 UK-based helpdesk
- Webex collaboration and Teams click-to-call integration
What to know first
- No free plan
- Plans require 60-month licences
- Only phones from BT’s Cloud Voice portfolio can be used
- Internet connection with sufficient bandwidth is required
sipXcom: what it does well
- Open-source unified communications software with a free plan.
- Combines PBX telephony, instant messaging and video calling.
- Supports custom call routing and multiple business numbers.
- Can run on one server or a distributed, optionally redundant system.
- REST and SOAP APIs support application integration.
What to know first
- The listed version 21.04 ISO specifies CentOS 7.
- Phone plug-and-play management is identified for selected models; others require manual configuration.
- Commercial versions with paid support are available.
Alternatives to BT Cloud Voice Alternatives to sipXcom The whole list