Crosstalk 751 PBX Appliance
Crosstalk 751 PBX Appliance
The Crosstalk 751 is a 1U rack-mount phone system with FreePBX pre-installed for mid-sized businesses. It handles up to 300 extensions and 75 concurrent calls, with 8GB of memory on an Intel quad-core i3 and a 256GB SSD.
Two PCIe slots take analog or digital cards for phone lines, T1/PRI circuits or fax machines. Without a card it's a pure VoIP system.
Specifications
| Processor | Intel quad-core i3 |
|---|---|
| Memory | 8GB |
| Storage | 256GB SSD |
| Power | Internal power supply, 100-240V |
| Network | 2x Gigabit Ethernet |
| Ports | 2x USB, 1x HDMI |
| Expansion | 2x PCIe slots for analog or digital cards |
| Capacity | Up to 300 extensions, 75 concurrent calls |
| Form factor | 1U rack mount, 13.25" D x 17.125" W x 1.75" H |
| Weight | 8.65 lb (9.15 lb packaged) |
| Software | FreePBX pre-installed |
Good to know
- The 751 replaces the Crosstalk 750, which reaches end of sale on June 30, 2026.
- Single SSD and a single power supply. For mirrored drives, step up to the Crosstalk 760.
- Need SIP trunks? We resell ClearlyIP SIP Trunking, which integrates tightly with FreePBX. Contact us for details.
Frequently asked questions
What replaced the Crosstalk 750?
The 751. The 750 reaches end of sale on June 30, 2026, and the 751 takes its place with the same 300 extension, 75 call capacity.
What's the difference between the 741 and the 751?
Memory and capacity. The 751 has 8GB of RAM and handles 300 extensions and 75 calls. The 741 has 4GB and handles 200 extensions and 50 calls. Same chassis and ports.
Can I connect analog phone lines to the 751?
Yes, with a card. The 751 has two PCIe slots for analog or digital cards. Without one, add an analog gateway or use SIP trunks.
Warranty and support
Every Crosstalk appliance includes a 2-year hardware warranty. Warranty returns are handled by ClearlyIP, which builds the hardware. The extended warranty option adds 3 years, for 5 years of total coverage. Questions before you buy? Email shop@crosstalksolutions.com or call 541-787-8870.