Cisco 8800 Series Guide

DescriptionParameter
IP address or name of the secondary NTP server used
to synchronize its time.
Perform one of the following:
• In the phone configuration file with
XML(cfg.xml), enter a string in this format:
<Secondary_NTP_Server ua="rw"/>
• In the phone web page, enter the IP address of
the secondary NTP server.
Default: Blank
Secondary NTP Server
Configure the RTP Parameters
Before you begin
Access the phone administration web page. See Access the Phone Web Interface, on page 104.
Procedure
Step 1 Select Voice > SIP.
Step 2 In the RTP Parameters section, set the Real-Time Transport Protocol (RTP) parameter values as described
in RTP Parameters, on page 355.
Step 3 Click Submit All Changes.
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
354
Cisco IP Phone Installation
Configure the RTP Parameters

Cisco 8800 Series Specifications

General

Protocols	SIP, SCCP
Audio	Wideband audio
Connectivity	Gigabit Ethernet
Power	Power over Ethernet (PoE)
Bluetooth	Yes
USB	Yes
Codec Support	G.711, G.722, G.729, iLBC
Dimensions	Varies by model
Weight	Varies by model
Wi-Fi	Yes (varies by model)