
Documented specifications
Yealink · Manufacturer documentation available at review; remaining support period and local availability not established.
| Specification | Documented value |
|---|---|
| Display | 1.8-inch color Source ↗ |
| Headset | 3.5 mm jack Source ↗ |
| Calls | Up to two simultaneous per handset Source ↗ |
| Talk time | Up to 35 hours in ideal conditions Source ↗ |
| Standby | Up to 400 hours in ideal conditions Source ↗ |
| Compatible bases | W60B/W70B; W80/W90 systems Source ↗ |
Unlisted fields remain unverified. Platform compatibility and remaining support life require confirmation for the exact ordered model.
What it is and why consider it
W73H is a compact DECT handset for ordinary mobile office calling. Its wired headset jack and small screen make it a practical baseline for comparing more elaborate cordless devices.
Reasons to choose something else
Choose W78H when a larger screen or Bluetooth headset is a daily requirement. This handset does not directly join Wi-Fi or replace its required DECT base station.
Deployment and acceptance checks
Test call transfer, voicemail access and idle ringing around the work area. Validate the headset plug and charger placement, then compare battery behavior over the intended shift.
Record the ordered model, hardware revision, installed firmware and calling platform together. Confirm administrator and provisioning ownership before connecting a previously used device. Keep the previous configuration and a supported recovery method before changing firmware; an arbitrary downgrade can remove security fixes.
Firmware, support and evidence
Use the linked Yealink support resources to match the device to its approved firmware and provisioning instructions. The facts above come from manufacturer documentation; no hands-on measurements, current price or merchant offer are implied.
Where the table does not specify display, SIP-account capacity, network ports, PoE, Wi-Fi, Bluetooth, codecs, headset or expansion support, that field remains unverified for this record. A base station, handset and accessory have different responsibilities; do not copy a feature between them. Confirm lifecycle notices and support entitlement before a fleet purchase.
Sources & applicability
Primary references for the technical details above. Operational examples and planning checklists are VoIP.info editorial guidance.
Examples require adaptation to your topology. No live PBX or hardware testing is claimed.