| Product Description | Cisco IP Phone 6821 - VoIP phone with caller ID/call waiting |
|---|---|
| Product Type | VoIP phone with caller ID/call waiting |
| Display | LCD display - monochrome - Yes |
| Speakerphone | Yes |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| Voice Codecs | G.722, G.729a, G.729ab, G.711a, iLBC, G.729b, iSAC, G.722.2, Opus, G.711µ |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX |
| VoIP Protocols | SIP, SRTP |
| Lines Supported | 2 lines |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
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