- 2 SIP Accounts
- Full duplex speaker phone
- 5-way conferencing
- Dual Ethernet ports
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S500 经济型 SIP话机
- 4 SIP Accounts
- Full duplex speaker phone
- 5-way conferencing
- 3.5 inch full color display
- 28 programmable soft keys
- Headset compatible
- Dual gigabit Ethernet ports
