and 7861 Desktop Phones; IP Phone 8811, 8841, 8845, 8851, 8861, and 8865 Desktop Phones; Unified IP Conference Phone 8831 and Wireless IP Phone 8821 and 8821-EX. Of note, according to Cisco ...

Affected Cisco models include its IP Phone 7811, 7821, 7841, and 7861 Desktop Phones; IP Phone 8811, 8841, 8845, 8851, 8861, and 8865 Desktop Phones; Unified IP Conference Phone 8831; and Wireless ...

Comparing the different models, the Cisco IP Phone 6821 supports two SIP registrations ... The most active VoIP users are more likely to need the 7861 device, however, which comes with 16 ...