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General| Number of Line Keys | 6 |
|---|---|
| Display | Graphical LCD with backlight |
| Audio Codec Support | G.711, G.729 |
| Ethernet Ports | 2 x 10/100 Mbps |
| Power over Ethernet | 802.3af |
| Headset Port | Yes |
| Speakerphone | Yes |
| Protocols | SIP |
| Weight | 0.9 kg |
Details screen, indicators, and key groups like programmable and interactive keys.
Describes the purpose of navigation, green, tools, directory, R, red, OK, and L1/L2 keys.
Explains text entry via keypad and LED status indicators.
Information on phone accessories and standard access codes.
Explains how to make and answer calls using the hands-free feature.
Details how to operate the phone using a connected headset.
Explains how to enable group listening during a call.
Instructions for dialing internal and external numbers.
How to redial the last dialed number.
Steps to find and call contacts using their names.
How to adjust the volume of the phone's ringer.
Procedures for answering incoming calls via handset or speaker.
How to forward incoming calls to a different extension.
How to mute the microphone during a call for privacy.
Instructions for placing a call on hold and retrieving it.
Steps for transferring an active call to another party.
How to view the history of outgoing calls.
Procedure to remove individual entries from the call log.
How to navigate and view entries in the private directory.
Steps to add new contacts to the private directory.
How to edit or remove existing contacts from the directory.
Guide to setting up speed dial numbers for quick access.
How to review the history of incoming calls.
Saving incoming call details into the private directory.
How to access general phone information.
How to search and view the directory of internal contacts.
How to search and view the directory of external contacts.
General steps to assign numbers or functions to keys.
Specific instructions for programming a phone number to a key.
How to program a key for call supervision.
Basic steps to set up call forwarding.
Procedure to disable an active call forwarding.
How to bypass forwarding to reach a desired phone.
Steps to set up and personalize your voicemail box.
How to redirect calls to the voicemail system.
Guide to setting up keys for managing multiple calls.
How to use programmed multi-key functions.
Steps to program multiple directory numbers on a phone.
How to use the multi-line features for call management.
How to set up keys to monitor other phones.
Using programmed keys to interact with supervised phones.
Steps to set up a folder function for specific contacts.
How to communicate with parties using the folder function.
Guide to setting up call filtering for another person.
How to use the filter function for managing calls.
How to log in to a general phone with your subscriber rights.
Procedure to log out from a temporary phone.
How to program appointments and reminders.
Managing programmed appointments, including modification and cancellation.
How to activate and deactivate the "Do not disturb" feature.
Setting up the DND feature on a programmable key for easier access.
Temporarily recovering phone features and programming on another phone.
Choosing the caller identity displayed to the called party.
Redirecting forwarded calls when leaving the office.
How to enable the phone's lock feature to restrict access.
Procedure to make calls while the phone is locked.
How to unlock the phone using the secret code.
Customizing ringtones and their volume levels.
Setting or changing the phone's security code.
Linking a directory for name-based dialing.
Lists all items included in the phone's packaging.
Instructions for connecting the handset, headset, and network cable.
Guidance on placing the phone on a desk or mounting it.
Steps to install the M670 extension module.
Definitions of key terms used in the manual.
Common problems and their possible causes and solutions.
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