Cisco 6821 Administration Guide

SIP NOTIFY XML-Service 68
SIP Configuration 68
Configure the Basic SIP Parameters 68
Configure the SIP Timer Values 69
Configure the Response Status Code Handling 69
Configure the RTP Parameters 69
Configure the SDP Payload Types 70
Configure the SIP Settings for Extensions 70
Configure the SIP Proxy Server 71
Configure the Subscriber Information Parameters 71
Managing NAT Transversal with Phones 71
Enable NAT Mapping 71
NAT Mapping with Session Border Controller 72
NAT Mapping with SIP-ALG Router 72
NAT Mapping with the Static IP Address 72
Configure NAT mapping with STUN 73
Dial Plan 74
Dial Plan Overview 74
Digit Sequences 75
Digit Sequence Examples 76
Acceptance and Transmission of the Dialed Digits 78
Dial Plan Timer (Off-Hook Timer) 79
Interdigit Long Timer (Incomplete Entry Timer) 79
Interdigit Short Timer (Complete Entry Timer) 80
Edit the Dial Plan on the IP Phone 81
Reset the Control Timers 81
Regional Parameters and Supplementary Services 82
Regional Parameters 82
Set the Control Timer Values 82
Localize Your Cisco IP Phone 83
Time and Date Settings 83
Configure Daylight Saving Time 83
Phone Display Language 84
Cisco IP Phone 6800 Series Documentation 87
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
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Contents

Cisco 6821 Specifications

General

Brand	Cisco
Model	6821
Category	IP Phone
Language	English