Ipma Support; Sha-256 Manufacturing Installed Certificate - Cisco 8841 Release Notes

Cisco IP Phone 8841, 8851, and 8861 Release Notes for Firmware Release 10.2(1)
Bluetooth Handsfree Profile (HFP)

IPMA Support

The Cisco IP Phones 8841, 8851, and 8861 support Cisco IP Manager Assistant (IPMA). IPMA is supported
on Cisco Unified Communications Manager Releases 9.1(2) SU2 and 10.5.
Support for IPMA on the Cisco Unified Communications Manager Releases 8.6 and 10.0 will be available
soon.
IPMA is not supported on Cisco Unified Communications Manager Release 8.5.1 or earlier.

SHA-256 Manufacturing Installed Certificate

The Cisco IP Phones 8841, 8851, and 8861 use a manufacturing installed certificate (MIC) with the signature
algorithm of SHA-256 with an RSA 2048 key. The signature algorithm requires Cisco Unified Communications
Manager, ACS, and Secure SRST support.
The Cisco certificate authority issuing the MIC for this series of phones can be obtained from the following
links if separate applications are used and these applications need to authenticate MIC from the phone.
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The SHA-256 MIC feature has the following support requirements:
• Cisco Unified Communications Manager releases:
• The compatible ACS release is ACS 5.2 and later.
• The compatible SRST release is IOS 12.4(15)T1 and later.
Cisco IP Phones 8851 and 8861 support Hands-free Unit mode to work with mobile cellular devices
for full telephony integration and two-way hands-free audio.
Hands-free Unit mode with mobile cellular devices is only supported on the following devices:
• Apple iPhone 4 and 5 series
• Samsung Galaxy S4, Note 2, and Note 3 series
http://www.cisco.com/security/pki/certs/cmca2.cer
http://www.cisco.com/security/pki/certs/crcam2.cer
◦ The compatible Cisco Unified Communications Manager releases are Cisco Unified
Communications Manager 9.1(2) and later.
◦ Cisco Unified Communications Manager 8.6(2) support is planned.
◦ There is no plan to support this SHA-256 MIC on Cisco Unified Communications Manager Release
8.5 or earlier.
Cisco IP Phone 8841, 8851, and 8861 Release Notes for Firmware Release 10.2(1)
IPMA Support
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