Yealink CPN10 PSTN Box – Plug & Play SIP + PSTN Support with USB Call Recording for Hybrid Conference Calls

In areas where PSTN lines are still common, the Yealink CPN10 PSTN Box bridges the gap for your modern IP phones. This compact accessory lets you use one simple PSTN cable to add analog telephony to compatible Yealink conference phones and desk IP phones. You get the best of both worlds—SIP VoIP calls plus reliable PSTN connectivity—for seamless local three-way conferencing right in your meeting room or office.

The Telecom Spot Take

For customers that still rely on PSTN infrastructure or want a hybrid setup, the CPN10 is a smart, no-fuss solution. It works with popular Yealink models like the CP860, CP920, CP960, CP925, CP965 and select T-series desk phones, turning them into true SIP + PSTN hybrids without extra power supplies or complicated setup. Plug-and-play design plus USB call recording and the ability to cascade two units makes it ideal for productive meetings with excellent speech quality. Businesses in PSTN-heavy regions or those needing backup analog lines get maximum value from their existing Yealink phones—simple, reliable, and ready to go.

Key Features

• Wide Compatibility – Supports Yealink IP Conference Phones CP860/CP920/CP960/CP925/CP965 and Desk IP Phones T67LTE/VP59/T58A/T58W/T57W/T54W/T53W/T53 for full SIP + PSTN compatibility
• Instant Setup – Plug and play with one PSTN cable—setup takes seconds in any meeting room or office
• Zero Power Hassle – No additional power needed—connects directly and starts working immediately
• USB Call Recording – Easily capture important conversations with a standard USB flash drive
• Cascaded PSTN Conferencing – Supports up to 2 cascaded CPN10 units to create a PSTN three-way conference
• Hybrid Calling Power – Enables both SIP protocol IP calls and traditional PSTN calls while delivering HD audio, full-duplex technology, and acoustic echo canceling

Technical Specifications