Cortelco 2757 User Manuals

Table of Contents

• Introduction

  5
• Package Contents

  5
• Features

  5
• Basic Setup

  6
• Network Setup

  8
• Static IP Address

  8
• PPPoE

  11
• DHCP

  15
• Network Setup (Web Configuration)

  17
• Display IP Address

  17
• Web Interface Network Configuration

  18
• SIP Server Information Setup

  21
• SIP Server Information Setup (Web Configuration)

  25
• Accepting and Making Phone Calls

  27
• Accepting phone calls

  27
• In-Call Options

  28
• Attended Transfer

  29
• Blind Transfer

  30
• 3-way

  30
• Line 2

  32
• Hold

  32
• Making phone calls

  32
• Caller ID on Call Waiting

  33
• Calling History

  34
• Missed Calls

  35
• Received Calls

  35
• Placed Calls

  35
• Unanswered Calls

  35
• Call Rejection (DND)

  36
• Speakerphone and Headset

  36
• Speakerphone

  36
• Placing Calls

  36
• Receiving Calls

  36
• Headset

  37
• Speed Dial

  37
• Call Forwarding

  38
• Busy

  38
• No Answer

  38
• Unconditional

  38
• DND

  38
• Advanced Settings

  38
• Inter Digit Time

  38
• End of Dial Key

  39
• DTMF Type

  39
• RFC2833 Payload Type for DTMF

  39
• Handset Volume/Handsfree Volume/Headset Volume

  39
• Ring Volume

  39
• Silence Suppression

  39
• Ring Tone Type

  39
• Voice Codec

  39
• Forward Timer

  39
• Do Not Disturb

  39
• Set Time Zone

  40
• NTP Server Address

  40
• Entry of Call Forward numbers from phone

  40
• Phone Book Management

  41
• Web Interface

  41
• Phone Interface

  42
• Browse System Information

  44
• LCD screen

  44
• Web Interface

  45
• Change Display Language

  47
• Change Ringer Type

  48
• Adjust the Contrast of LCD Screen

  49
• Reboot the IP Phone

  51
• Reboot the IP Phone

  51
• Phone Interface

  51
• Web Interface

  52
• Factory Reset

  53
• Phone Interface

  53
• Web Interface

  54
• Change Password for the Web Interface

  55
• Troubleshooting

  56
• Firmware Update

  57
• Upgrade Procedure

  57
• Recover from Unsuccessful Firmware Update

  58