- 3 SIP Accounts
- Full duplex speaker phone
- 5-way conferencing
- 2.7 inch LCD with backlight
- 25 programmable soft keys
- Headset compatible
- Dual Ethernet ports : s400: 10/100 ports,s405: Gigabit ports
The s400 and s405 IP Phones are full-featured SIP phones with three SIP accounts at a competitive price point.