About This Chapter - Aastra SIP 53I Administrator's Manual

About this chapter

Introduction
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
Advanced Operational Features
41-001160-00, Release 2.1, Rev 04
Configuring Advanced
MAC Address/Line Number in REGISTER Messages
SIP Message Sequence for Blind Transfer
Update Caller ID During a Call
Boot Sequence Recovery Mode
Auto-discovery Using mDNS
Single Call Restriction (57i CT only)
Missed Call Summary Subscription
Blacklist Duration (Broadsoft Servers)
Operational Features
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