Enable P-Early-Media Support; Peer Firmware Sharing - Cisco 8800 Series Administration Manual

Cisco IP Phone Administration
• none—The user requests that a privacy service applies no privacy functions to this SIP message.
• header—The user needs a privacy service to obscure headers which cannot be purged of identifying
• session—The user requests that a privacy service provide anonymity for the sessions.
• user—The user requests a privacy level only by intermediaries.
• id—The user requests that the system substitute an id that doesn't reveal the IP address or host name.
Before you begin
Access the phone administration web page. See
Procedure
Step 1 Select Voice > Extension.
Step 2
In the SIP Settings section, set the Privacy Header field as described in the
Step 3 Click Submit All Changes.

Enable P-Early-Media Support

You can determine whether to include the P-Early-Media header in the SIP message of outgoing calls. The
P-Early-Media header contains the status of the early media stream. If the status indicates that the network is
blocking the early media stream, the phone plays the local ringback tone. Otherwise, the phone plays the early
media while waiting for the call to be connected.
Before you begin
Access the phone administration web page. See
Procedure
Step 1
Select Voice > Ext (n).
Step 2 In the SIP Settings section, set the P-Early-Media Support field as described in
Step 3
Click Submit All Changes.

Peer Firmware Sharing

Peer Firmware Sharing (PFS) is a firmware distribution model which allows a Cisco IP phone to find other
phones of the same model or series on the subnet and share updated firmware files when you need to upgrade
multiple phones all at the same time. PFS uses Cisco Peer-to-Peer-Distribution Protocol (CPPDP) which is a
information.
Access the Phone Web Page, on page
Access the Phone Web Page, on page
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
Enable P-Early-Media Support
88.
SIP Settings, on page 321.
88.
SIP Settings, on page 321.
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