Contents

Call Forwarding

5-90

Callers List

5-96

Missed Calls Indicator

5-101

Directory List

5-103

Voicemail (55i, 57i, and 57i CT only)

5-113

XML Customized Services

5-116

SIP Local Dial Plan

5-137

Incoming/Outgoing Intercom with Auto-Answer

5-142

Audio Transmit and Receive Gain Adjustments

5-146

Ring Tones and Tone Sets

5-148

Priority Alerting

5-153

Stuttered Dial Tone

5-160

Call Waiting Tone

5-162

Language

5-164

Chapter 6

 

Advanced IP Phone Operational Features

 

About this chapter

6-1

Advanced Operational Features

6-2

MAC Address/Line Number in REGISTER Messages

6-3

SIP Message Sequence for Blind Transfer

6-5

Update Caller ID During a Call

6-6

Boot Sequence Recovery Mode

6-7

Auto-discovery Using mDNS

6-8

Single Call Restriction (57i CT only)

6-9

Chapter 7

 

Encryption and the IP Phone

 

About this chapter

7-1

Encryption and the IP Phone

7-2

Configuration File Encryption Method

7-2

Procedure to Encrypt/Decrypt Configuration Files

7-3

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Aastra Telecom 57I C53I manual Chapter Advanced IP Phone Operational Features