4PSA VoipNow
6.6#9 in ip pbx softwareFrom $145 a monthWebAPILinuxSelf-hosted
Visit4PSA VoipNow vs PortSIP PBX
PortSIP PBX
8.0#20 in business phone systemsFree planFree planAndroidiOSWebAPI
VisitWhat both publish
| Fact | 4PSA VoipNow | PortSIP PBX |
|---|---|---|
| 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. |
4PSA VoipNow plans
- On your infrastructure$145 a month
- Software download$165 a month
- OnDemand$159 a month
- Complete Cloud service$199 a month
- Software download perpetual license—
- VoipNow Express—
PortSIP PBX plans
- Free EditionFree
- Licensed Edition — Perpetual—
- Licensed Edition — Annual—
- Annual licensePriced on request
- Perpetual licensePriced on request
Pick 4PSA VoipNow if…
You want what its maker publishes above — check its page for the details.
Pick PortSIP PBX if…
PortSIP PBX suits service providers and MVNOs that need a broad communications, contact-center, and developer platform. It also fits organizations choosing self-hosted, cloud, or Docker deployment with Microsoft 365 integration.