Comparison Cisco 7811 vs Cisco 7821
Add to comparison |  |  |
|---|---|---|
| Cisco 7811 | Cisco 7821 | |
| Compare prices 7 | Compare prices 13 | |
| TOP sellers | ||
| Type | landline phone | landline phone |
| VoIP protocols | SIP | SIP |
| Interfaces | Ethernet Headset jack | Ethernet Headset jack |
Features | ||
| Features | Caller ID Conference call Speakerphone (speakerphone) Web interface PoE support | Caller ID Conference call Speakerphone (speakerphone) Web interface PoE support |
Extra features | ||
| Number of telephone lines | 1 | 2 |
Display | ||
| Base display | monochrome | monochrome |
General | ||
| Wall mounting |  | |
| Base dimensions (HxWxT) | 33x207x195 mm | 28x207x206 mm |
| Base weight | 806 g | 867 g |
| Color | ||
| Added to E-Catalog | september 2016 | june 2015 |
Compare Cisco 7811 and 7821
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Glossary
Number of telephone lines
The largest number of phone lines to which an IP phone can be connected at the same time. In fact, this is the number of calls that the device can simultaneously work with. Support of multiple telephone lines provides various additional features — switching between calls, organizing conferences (see "Features"), connecting people with each other, etc. The specific features, however, may be different — it all depends on the model.