The W56P is a kit of separate base and handset models. The box holds a W56B DECT base and one W56H handset for about $150; each base takes up to five handsets with up to four simultaneous calls, and each handset can be its own extension, share one, or any mix. The host calls it his long-time go-to cordless solution.
The W56 base is end-of-life; pair the W56H with the W60P instead. The replacement W60 base supports up to eight handsets and eight simultaneous calls and still uses the W56H handset. The host gives the W60P's MSRP as $189 US, with Amazon listing it at $149.50; extra W56H handsets are sold separately on Amazon.
The W56H trades the W52P's compactness for more range. The host, who has sold the W52P handset in the past, says the older model is smaller but, he believes, does not have quite the same range; the two are priced about the same.
The handset charger runs off USB, and battery figures are optimistic. The charging cradle's USB power means any USB port will do; he charged it from the front of a Sangoma phone system. Yealink rates the lithium-ion battery at 30 hours talk and 400 hours standby, which the host says he has never seen real-world use match.
Manual FreePBX setup needs only the account fields and voicemail key. The base takes DHCP by default and its web GUI login is admin/admin; under Account, enable the line, use the extension number for label, display and register names, the FreePBX SIP password, the server's IP and port 5060, then set the voicemail code to *97. The host himself used the FreePBX Endpoint Manager, which does this automatically.