Aastra Telecom 41-001343-02 User Manual

41-001343-02 REV04 – 05.2014

6-1

Chapter 6
Configuring Advanced Operational Features

About this Chapter

The IP phones have advanced operational features you can configure using the configuration files and/or the Aastra Web
UI. This chapter describes each of these features and provides procedures for configuring each feature.

Topics

This chapter covers the following topics:

Topic

Page

Advanced Operational Features

MAC Address/Line Number in REGISTER Messages

SIP Message Sequence for Blind Transfer

SIP Message Sequence for Semi-Attended Transfer

Update Caller ID During a Call

Boot Sequence Recovery Mode

Auto-discovery Using mDNS

Single Call Restriction

Missed Call Summary Subscription

As-Feature-Event Subscription

Blacklist Duration

Whitelist Proxy

Transport Layer Security (TLS)

Symmetric UDP Signaling

Symmetric TLS Signaling

Removing UserAgent and Server SIP Headers

GRUU and sip.instance Support

Multi-Stage Digit Collection (Billing Codes) Support (for Sylantro Servers)

Configurable DNS Queries

Ignore Out of Sequence Errors

“Early-Only” Parameter in Replaces Header RFC3891

Switching Between Early Media and Local Ringing

Enable Microphone During Early Media

“Call-Info” Header to 200ok Responses for Shared Call Appearance (SCA) Lines

Reason Header Field in SIP Message