| Wi-Fi |
T41S—requires purchase of 802.11 a/b/g
WF40/WF50 Wi-Fi USB adaptor
T41SW—includes 802.11 a/b/g Wi-Fi |
| Ethernet |
10/100 M Ethernet port |
| Bluetooth® |
Yes, with USB adaptor |
| Headset support |
RJ9 (wired), RJ12 (wireless adaptor),
Bluetooth USB adaptor |
| HD voice |
Yes |
| Programmable keys |
Six line keys can be programmed up to 15
paperless DSS keys |
| Intercom |
Yes |
| Busy lamp field |
Yes |
| Number of contacts supported |
1,000 contacts; manual entry |
| Expansion unit compatible (EXP40) |
No |
