- Product Description: Cisco IP Phone 7821
- Vo IP phone
- Product Type: Vo IP phone
- Main
Features: Multiple Vo IP protocol support, integrated Ethernet switch
- Vo IP Protocols: SIP, SRTP
- Voice Codecs: G.722, G.729ab, G.711u, G.711a, i LBC Lines Supported 2 lines
- Speakerphone: Yes (digital duplex )
- Call Services: Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability
- Display: LCD display
- monochrome
- Yes
- Network Ports Qty: 2 x Ethernet 10 Base-T/ 100 Base-TX