Answer
Sep 18, 2026 - 10:05 AM
When selecting an HP Poly Adapter, one of the most important considerations is the number of ports supported, as this determines how many analog devices (such as phones or fax machines) you can connect to your VoIP network. The “best” port configuration depends on your specific needs—single-port adapters are ideal for small offices or home setups, while dual-port options suit environments needing more flexibility and device support. Within this category, options range from 1 FXS port, as seen in the Poly ATA 400 1FXS, to 2 FXS ports with the Poly ATA 402 2FXS. Having a choice between 1 and 2 ports allows users to select the device that matches their current and future expansion requirements.
