User guide
Table Of Contents
- Changes to This Guide
- Contents
- Getting Started with Your SoundPoint® IP 650 Desktop Phone
- Customizing Your SoundPoint® IP 650 Desktop Phone
- Configuring Basic Settings
- Changing the Appearance of Time and Date
- Changing the Display Contrast
- Changing the Backlight Intensity
- Enabling the Headset Memory Mode
- Selecting the Correct Headset for Electronic Hookswitch
- Selecting the Ring Type
- Changing the Language
- Changing the Graphic Display Background
- Muting the Microphone
- Adjusting the Volume
- Managing Call Lists
- Managing Contacts
- Managing Incoming Calls
- System Customizations
- Configuring Basic Settings
- Using the Basic Features of Your SoundPoint® IP 650 Desktop Phone
- Using the Advanced Features of Your SoundPoint® IP 650 Desktop Phone
- Using the SoundPoint® IP Backlit Expansion Module
- Troubleshooting Your SoundPoint® IP 650 Desktop Phone
- Regulatory Notices
- Index
Troubleshooting Your SoundPoint
®
IP 650 Desktop Phone
6 - 5
Calling
Symptom Problem Corrective Action
There is no dial tone. Power is not correctly applied to
the SoundPoint IP 650 phone.
Do one of the following:
• Check that the display is illuminated.
• Make sure the LAN cable is inserted
properly at the back of the phone (try
unplugging and re-inserting the
cable).
• If using Power over Ethernet (PoE),
have your system administrator check
that the switch is supplying power to
the phone.
Dial tone is not present on one of
the audio modes.
Do one of the following:
• Switch between Handset, Headset (if
present) or Hands-Free
Speakerphone to see if the dial tone is
present for one of audio modes.
• If the dial tone exists on another audio
mode, connect a different handset or
headset to isolate the problem.