Audio
- Codecs – G.711 (A-law and u-law), G.722.2, G.722, G.729ab, ILBC, iSAC, OPUS (G.722, G722.2 not supported on 7811)
- DTMF – In-band, out-of-band (RFC 2833), and SIP INFO
Network
- MAC address (IEEE 802.3)
- SIP protocol support (RFC3261 and companion RFCs)
- IPv4 (RFC 791)
- DNS – A record (RFC 1706), SRV record (RFC 2782)
- Dynamic Host Configuration Protocol (DHCP) (RFC 2131)
- Simple Network Time Protocol (SNTP) (RFC 2030)
- Network Address Translation (NAT) transversal, serial tunnel (STUN)
- UDP/TCP
- Link Layer Discovery Protocol (LLDP)
- Cisco Discovery Protocol
Security
- 802.1X authentication
- Media encryption via Secure Real-Time Transport Protocol (SRTP)
- Transport Layer Security (TLS)
- Encrypted configuration files
- Digest authentication
- Password login
- HTTPS secure provisioning
Applications
- Cisco XML services interface (XSI)
Call Control and Audio Features
- Busy Lamp Field (BLF)
- Call back on busy
- Call blocking – anonymous and selective
- Call conferencing – hosted (N-party)
- Call conferencing – local 3-way
- Call forwarding – unconditional, no answer, on busy
- Call hold
- Call pickup – selective and group
- Call park and unpark
- Call transfer – attended or blind
- Call waiting
- Caller ID name and number and outbound caller ID blocking
- Caller ID mapping for incoming calls
- Configurable dial/numbering plan support with inter-digit timers – per line
- Configurable supplementary services soft keys
- Distinctive ringing based on calling and called number
- Do not disturb
- Extension mobility/hot-desking
- Group paging
- Hoteling
- Intercom
- Individual volume setting per audio path (headset/handset/speaker)
- Multicast paging
- Music on hold
- Outbound caller ID blocking
- Visual voice message waiting for indicator (VMWI)
- Shared/bridge line appearance
- Supplementary services feature activation codes
Directory
- Local phonebook
- XML/LDAP remote directory
- Broadsoft directory
- Intelligent search
- Call history
Management
- Configuration: browser/phone/auto-provision
- Auto-provision via TFTP/HTTP/HTTPS for mass deployment
- Problem Reporting Tool (PRT)
In the Box
- CP-7861 phone
- Handset
- Curly cord
- Desktop stand
- Network cable
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