Cisco IP Phone 7821
VoIP phone | SIP, SRTP | 2 lines | remanufactured
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Main Specification
| Product Description | Cisco IP Phone 7821 - VoIP phone |
|---|---|
| Product Type | VoIP phone |
| Compatible Platforms | Cisco Business Edition 6000 |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, SRTP |
| Voice Codecs | G.722, G.729ab, G.711u, G.711a, iLBC |
| 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 10Base-T/100Base-TX |
| Compatible Software | Cisco Unified Communications Manager 8.5.1 or later, Cisco Hosted Collaboration Solution |
| Manufacturer Warranty | 1-year warranty |
| Pricing Type | Remanufactured |
General
| Product Type | VoIP phone |
|---|---|
| Compatible Platforms | Cisco Business Edition 6000 |
| Body Material | PC/ABS |
Phone Features
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
|---|---|
| Dialer Type | Keypad |
| Dialer Location | Base |
| Conference Call Capability | Yes |
| Speakerphone | Yes (digital duplex) |
| Menu Operation | Yes |
| Programmable Buttons Qty | 2 |
| Indicators | Voice message waiting indicator, speakerphone indicator, headset |
| Firmware Upgradable | Yes |
| Additional Functions | Call timer |
| Additional Features | Music on hold |
IP Telephony
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
|---|---|
| VoIP | Yes |
| VoIP Protocols | SIP, SRTP |
| Voice Codecs | G.722, G.729ab, G.711u, G.711a, iLBC |
| Lines Supported | 2 lines |
| Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p |
| IP Address Assignment | DHCP, static |
| Security | IEEE 802.1X |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | Cisco Discovery Protocol (CDP), SRTP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX |
| Compatible Software | Cisco Unified Communications Manager 8.5.1 or later, Cisco Hosted Collaboration Solution |
| Network Features | Lightweight Directory Access Protocol (LDAP) |
Display
| Type | LCD display - monochrome |
|---|---|
| Display Location | Base |
| Diagonal Size | 3.5" |
| Display Resolution | 396 x 162 pixels |
| Backlit | Yes |
| Display Languages | Danish, Hebrew, Hungarian, Czech, Croatian, Slovenian, Thai, Slovak, Brazilian Portuguese, English, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Arabic, Bulgarian, Latvian, Lithuanian, Estonian, Serbian, Romanian, Catalan, Japanese, Chinese, Korean |
Miscellaneous
| Connections | Headset jack |
|---|---|
| Placing / Mounting | Wall-mountable, table-top |
| Pricing Type | Remanufactured |
| Compliant Standards | CISPR 22 Class B, CISPR 24, EN 61000-3-2, EN 61000-3-3, EN55024, EN55022 Class B, ICES-003 Class B, AS/ACIF S004, FCC Part 68, EMC, CS-03, UL 60950-1 Second Edition, EN 60601-1-2, FCC CFR47 Part 15 B, GB 4943, AS/NZS 60950, CSA C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, IEC 60950-1 Second Edition, VCCI Class B |
Dimensions & Weight (Base)
| Width | 20.6 cm |
|---|---|
| Depth | 2.8 cm |
| Height | 20.7 cm |
| Weight | 867 g |
Manufacturer Warranty
| Service & Support | Limited warranty - replacement - 1 year |
|---|
Product features
Versatile display options
The Cisco IP Phone 7821 features a 3.5-inch monochrome LCD display, offering clear and accessible call information with support for multiple languages, including Arabic, English, French, and Spanish, ensuring a versatile user experience for global business environments.Enhanced call management
Equipped with call forwarding, call hold, call transfer, call waiting, caller ID, message waiting capability, and voice mail, this device streamlines communication processes, making it easier to manage calls efficiently.Robust connectivity
With two Ethernet 10Base-T/100Base-TX network ports and integrated Power over Ethernet (PoE) support, the Cisco IP Phone 7821 ensures reliable connectivity and simplifies the deployment in various network environments.High-quality voice transmission
Supporting multiple VoIP protocols including SIP and voice codecs such as G.711a, G.711u, G.722, and iLBC, the phone delivers superior voice quality, enhancing communication clarity and performance.Flexible placement
Designed for versatility, the phone can be conveniently placed on a table-top or mounted on the wall, catering to different spatial requirements and preferences.Key selling points
- Dedicated fixed keys for common functions such as conference, messaging, and directory, and a two-way navigation button
- Full wideband audio performance throughout the handset, headset, and speakerphone for superior clarity
- Electronic hookswitch control for added flexibility in managing personal calls when using third-party headsets
- Power over Ethernet (PoE) Class 1 endpoint and Cisco EnergyWise to reduce your energy costs and carbon footprint
- Enhanced customization with a field-replaceable bezel option
- Integrated IEEE 10/100 switch to support traffic from a co-located PC for reduced cable infrastructure costs
- A wall-mount option for common areas such as aisles or hallways, or where desk space is limited
References
MPN: CP-7821-K9-RF
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04/06/2026 01:26:34