3C10402A | 3Com 3102 IP Telephone 2 x RJ-45 10/100Base-TX 1 x Desktop

Here are 12 technical specifications for the 3Com 3102 IP Telephone:

1. Display: LCD, monochrome, 128 x 64 pixels
2. Ethernet Ports: 2 x RJ-45 10/100Base-TX
3. Protocol Support: SIP, H.323
4. Voice Codecs: G.711, G.729a, G.723.1, G.722, BV-16, BV-32
5. Power over Ethernet (PoE): Supported
6. Speakerphone: Full-duplex
7. Headset Support: Yes, RJ-9 port
8. Call Features: Caller ID, call waiting, call forwarding, call transfer, 3-way conference calling
9. QoS Support: Yes, supports 802.1p/Q tagging
10. Dimensions: 7.5 in x 6.5 in x 3 in
11. Weight: 1.5 lbs
12. Compatibility: Compatible with 3Com VCX and NBX phone systems

Helpful notes:
1. The refurbished model is a cost-effective option for those looking to save money on their phone system.
2. The phone supports a variety of voice codecs, allowing for flexibility in call quality and bandwidth usage.
3. The PoE support eliminates the need for a separate power supply, simplifying installation and reducing clutter.