Side by side
PortSIP PBX vs Tellarc Business Phone System
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.
Free plan AndroidAPIiPhone+4
Choose PortSIP PBX if you need a broad communications platform with a free edition and multiple deployment options. The free edition has firm extension and simultaneous-call caps, while license prices require a quote, so organizations planning beyond those limits should review licensing with PortSIP.
Visit PortSIP PBX Paid AndroidExtensioniPhone+1
Tellarc combines hosted PBX calling with web administration, mobile extensions, IVR, voicemail, and conferencing. Check broadband requirements and request pricing before choosing it.
Visit Tellarc Business Phone SystemThe facts
| PortSIP PBX | Tellarc Business Phone System | |
|---|---|---|
| Free plan | Yes | Not published |
| Open source | Not published | Not published |
| Runs on | Android, API, iPhone, Linux, Self-hosted, Web, Windows | Android, Extension, iPhone, Web |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 5 | 1 |
| Maker | Not published | Not published |
| Website | portsip.com | tellarc.com |
| On business phone systems | #3 of 174 | #150 of 174 |
PortSIP PBX: what it does well
- Free Edition includes all features.
- Custom call routing and an auto attendant are included.
- Contact center tools include skill-based routing and live wallboards.
- Deploy on premises, in a data center, or on major cloud platforms.
- Microsoft 365 integration includes provisioning, SSO, and contact synchronization.
What to know first
- Free Edition is limited to 3 extensions and 2 simultaneous calls.
- Licensed Edition prices are available by quote only.
- Linux PBX installation uses Docker and lists Debian and Ubuntu.
Tellarc Business Phone System: what it does well
- Unlimited nationwide calling included
- Custom call routing and IVR menus
- Cell phone can act as extension
- Voicemail-to-email delivery
- Emergency service provides office address
What to know first
- Pricing is available only on request
- Requires a good broadband connection
- No specific security certifications stated
- Coverage focuses on continental United States
Alternatives to PortSIP PBX Alternatives to Tellarc Business Phone System The whole list