Product Type | IP Phone |
Model | Cisco IP Phone 7821 with MPP firmware |
Form Factor | Desktop |
Power Requirements | IEEE 802.3af Power over Ethernet (PoE); Optional external power adapter |
TAA Compliant | Yes |
Product Weight | Approx. 2.1 lbs (0.95 kg) |
Cisco IP Phone 7821 with MPP Firmware, TAA Compliant

Key Benefits

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- TAA compliance makes this IP phone an ideal choice for government or federally regulated sectors.
- Wide codec support ensures compatibility and clear voice quality across a range of SIP platforms.
- Built-in features like voicemail, caller ID, and full-duplex speakerphone enhance user productivity and communication.
Product Overview
The Cisco IP Phone 7821 with MPP firmware is an enterprise-grade VoIP solution designed for small to mid-sized businesses. It includes key telephony features like call forwarding, voicemail, conference calling, and caller ID, with TAA compliance suitable for government use. This model supports a wide array of voice codecs including G.711, G.722, Opus, and more for enhanced audio fidelity. The unit is also hearing aid compatible and includes volume control and speakerphone functionality. Compact in size and built in Mexico, it delivers robust performance and high reliability for SIP-based communications networks.
Specifications
Product Overview
Wireless Features
Wi-Fi Support | |
Bluetooth |
Compliance & Origin
Country of Origin | Mexico |
Certifications | CE Mark, FCC Part 15 (CFR 47) Class B, UL, CSA, EN 60950 |
RoHS Compliant | Yes |
Hearing Aid Compatible (HAC) | Yes |
Advanced Security Features
Secure Boot | Yes |
Device Authentication | 802.1x support |
Signaling Security | TLS (Transport Layer Security) |
Media Encryption | SRTP (Secure Real-Time Transport Protocol) |
Interfaces
Network Interface | 2 x 10/100 Mbps Ethernet ports |
PC Port | Yes (Fast Ethernet Pass-Through) |
PoE Support | Yes, Class 1 |
USB Ports | None |
Audio Interface | Standard RJ9 handset and headset ports |
Physical & Environmental
Width (Base) | 206 mm |
Height (Base) | 207 mm |
Depth (Base) | 28 mm |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -10°C to 60°C (14°F to 140°F) |
Operating Humidity | 10% to 90% (noncondensing) |
Storage Humidity | 10% to 95% (noncondensing) |
Mounting Options | Wall-mountable and desktop configuration |
Cloud Management & Licensing
Firmware Type | Multiplatform Firmware (MPP) |
Compatible Call Platforms | Third-party call control (SIP), BroadSoft, Asterisk, Metaswitch, etc. |
Management Interface | Web-based GUI, XML provisioning |
Telephony Features
Line Keys | 2 programmable line/feature keys |
Display | 384 x 106 pixel grayscale backlit display |
Speakerphone | Full-duplex |
Message Waiting Indicator | Yes (LED alert) |
Voicemail Support | Yes |
Call Forwarding | Yes |
Call Hold | Yes |
Call Transfer | Yes |
Conference Call Capability | 3-way |
Caller ID | Yes |
Volume Control | Yes |
Voice Codecs Supported | G.711 (A-law and μ-law), G.722, G.722.2, G.729ab, iLBC, iSAC, Opus |