4PSA VoipNow vs PortSIP PBX
4PSA VoipNow
4psa.comPortSIP PBX
portsip.comSide by side
| Figure | 4PSA VoipNow | PortSIP PBX |
|---|---|---|
| Price from | $145/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 5 |
| Spec score · IP PBX Software | 8.8 (#3) | 8.3 (#5) |
| Spec score · Business Phone Systems | 8.4 (#55) | 8.7 (#23) |
| Auto attendant | Yes | Yes |
| Call routing | advanced | custom |
| Communications | VoipNow supports browser-based voice and video using WebRTC over SIP, plus conferencing, instant messaging, file transfer, and screen sharing. | The platform combines call routing, SMS, WhatsApp, team messaging, contact center, and voice and video meetings. |
| Deployment | The download page lists command-line installer, ISO, VMware, Virtuozzo, Docker on Linux, Amazon EC2 AMI, and Microsoft Azure deployment options. | PortSIP PBX can run in a customer data center, on premises, or on Azure, AWS, and Google Cloud, with Docker deployment. |
| Desktop and mobile apps | Yes | Yes |
| Free plan | Yes | Yes |
| Product | VoipNow is a cloud communications platform for service providers and organizations, with enterprise PBX, voice, video, presence, instant messaging, conferencing, faxing, and contact center features. | PortSIP PBX is a multi-tenant communications platform for service providers and MVNOs offering Cloud PBX, UCaaS, CPaaS, and CCaaS services. |
| Security | The product tour describes infrastructure and application firewalls, concurrent-call and account-usage limits, and media encryption supporting SDES and STLS-SRTP. | PortSIP PBX and its apps support SRTP and DTLS-SRTP media encryption, with AES-256 when enabled. |
| Support | The pricing page says an active one-year Software Update Subscription includes new software versions and technical support through the Support Zone. | The product page advertises 24 x 7 support. |
Plans
4PSA VoipNow
- On your infrastructure$145 a month
- Software download$165 a month
- OnDemand$159 a month
- Complete Cloud service$199 a month
- Software download perpetual licensePrice not published
- VoipNow ExpressPrice not published
- On your infrastructure software download$150, paid once
PortSIP PBX
- Free EditionFree
- Licensed Edition — PerpetualPrice not published
- Licensed Edition — AnnualPrice not published
- Annual licensePriced on request
- Perpetual licensePriced on request
In their own words
4PSA VoipNow
4PSA VoipNow has no write-up on Specifiction yet; its figures are above.
PortSIP PBX
PortSIP PBX is a multi-tenant communications platform for service providers and MVNOs offering Cloud PBX, UCaaS, CPaaS, and CCaaS services. It brings together call routing, SMS, WhatsApp, team messaging, contact center functions, and voice and video meetings. Customers can run it in their own data center, on premises, or on Azure, AWS, and Google Cloud; Docker deployment is supported. PortSIP says a deployment can support 50,000–100,000 simultaneous online users. Contact center tools include skill-based routing, queue strategies, wallboards, analytics, callback, and real-time monitoring and training. AI features include call and voicemail transcription, generated notes and summaries, and sentiment analysis. Microsoft 365 integration supports user provisioning, SSO, and directory and contact synchronization. Developer options include REST APIs, Pub/Sub, messaging APIs, webhooks, a calling SDK, and call control APIs. The Free Edition costs nothing and includes all features, up to two simultaneous calls, and three extensions. Paid perpetual and annual licenses provide access to all features and are based on extension users; prices require a quote. The platform and its apps support SRTP and DTLS-SRTP media encryption, with AES-256 when enabled. The product page advertises 24 x 7 support.