• About these instructions
• Functions and applications
  • Information about the section
  • Action URL
  • Anonymous call
  • Apps
  • Automatic answer
  • Automatic Start of Call
  • Bluetooth
  • Call
  • Call Completion
  • Call forwarding
    • General
    • Immediately
    • On busy
    • On no reply
  • Call bindings
  • Call type
  • Call waiting
  • Caller list
    • Overview: All call lists
    • Redial List
    • Missed Calls
  • Camera
  • Certificates
  • Conference calls
  • Contacts
  • CTI
  • Data Backup
  • Date and Time
  • Device Information
  • Dial a Subscriber Number Manually
  • Display and LED
  • Do not Disturb
  • Fallback identity
  • Function keys
  • Function templates
  • Hands-free calling mode
  • Headset mode
  • Identities
    • General
    • PBX
    • VoIP provider
  • Idle state
  • Language and Location
  • LDAP
  • Logging
  • Loudspeaker listening mode
  • Music on hold
  • NAT
  • Network
    • General
    • IPv4
    • IPv6
    • VLAN
    • VPN
  • Outbound proxy
  • Passwords
  • Pick-Up
    • Pick-up in idle state
    • Pick-up during a call
  • Provisioning
  • Query Calls
  • Redial List
  • Factory settings
  • Reverse search
  • Silent Call
  • SIP
  • SIPS
  • Sound
  • Speed dial
  • SRTP
  • Sync
  • Transferring calls
    • Call transfer types
    • Transferring a call with an announcement
    • Transferring a call without an announcement
    • Calling a 3rd internal subscriber
  • Update
  • User
  • Voicemail number
  • Wi-Fi
  • XML Minibrowser
• Telephoning
  • Information about the section
  • Incoming calls
  • Call-Waiting Calls
  • Dialled calls
  • Call
  • Query Calls
  • Transferring calls
  • Conference calls
  • Hands-Free Calling
  • Loudspeaker listening
  • Headset Call
  • Call history
  • Pick-up
• Device overview
  • Front View
  • Rear View
• Using the Web Interface
  • Introduction
    • Opening the Web Interface
    • Operating Instructions
      • Overview
      • Fields and User Elements
      • Appearance
  • Dashboard
    • Status Information
    • Language and Location
    • Device name
  • Display
  • Function keys
    • Overview
    • Edit function keys
  • Provisioning
    • Basic Settings
    • Schedule
    • SIP provisioning
    • Additional function templates
  • Identities
    • Managing Identities
    • Basic Network Settings
    • Options for experts
    • Codecs
    • Registrar
    • NAT
    • Outbound proxy
  • IP camera
    • Camera management
    • Settings
  • Update
    • Basic Settings
    • Restart and factory reset
    • Scheduling
  • Network
    • Current Settings
    • IPv4
    • IPv6
    • VLAN
    • VPN
  • LDAP
    • Basic Settings
    • LDAP filter
  • Telephony
    • Call settings
      • Call signalling
      • Outgoing calls
      • Call forwarding
      • Automatic Answer
    • Call bindings
  • Ringtones
  • Date and Time
  • User
    • User administration
    • Settings
  • Backup and restore
  • Access
    • Developer options
    • Action URL
    • Logging
• Using the Phone
  • Introduction
    • Display
      • Display overview
        • All call lists
        • Active conversation
        • Putting a conversation on hold
        • Call forwarding
        • Conference call
        • Transfer
        • Call bindings
      • Status Line
      • Status widget
      • Status bar
      • Function Keys
      • System icons
      • Entry and Selection Fields
      • Screen keyboard
      • Navigation in menus
    • Keys and LEDs
      • Keypad
      • Dedicated function keys
      • Clear, Home, Back
      • Directional pad and OK
      • LED signalling on function keys
      • Casing LED
      • Changing the input mode
    • Apps
      • All Apps
      • Installing Additional Apps
  • Calls
    • Navigation
    • Options
  • Contacts
    • Navigation
    • Edit Contact
  • Sync
    • Accounts
    • Global options
  • Notifications
  • Settings
    • Network
      • IPv4 Settings
      • IPv6 Settings
      • VLAN
      • VPN
    • Identities
      • Identities Management
      • Basic Settings
      • Options for Experts
        • Registrar
        • SIP
        • NAT
        • Function codes
        • Audio
        • Security
        • Outbound-Proxy
        • Interface
        • Fallback for
        • Ringer Tone
    • Bluetooth
    • Wi-Fi
      • Overview
      • Configure Wi-Fi
    • Sound
    • Language and location
    • Display and LED
    • Telephony
      • Call waiting
      • Audible indication
      • Do not disturb
      • Call forwarding
      • Anonymous call
      • Reverse search
      • Automatic start of call
      • Automatic Answer
      • Call Completion
      • Call bindings
    • Function keys
    • Camera
    • Update
    • Provisioning
    • Access
    • Apps
    • Date and Time
    • Contacts/LDAP
    • About phone
• Glossary
  • Technical terms and functions
    • Account
    • Bootloader
    • Browser
    • Build number
    • Call Deflection
    • Client
    • Codec
    • DHCP
    • DNS
    • Domain
    • Downdate
    • DTMF
    • EHS
    • End Device
    • Ethernet
    • Firewall
    • Firmware
    • Frame size
    • Gateway
    • Host
    • HTTPS
    • IMAP
    • IP Address
    • IPsec
    • IPv4
    • IPv6
    • Jitter Buffer
    • LDAP
    • LED
    • MAC
    • NAT
    • NAT Traversal
    • NTP
    • Open-Source License
    • PoE
    • POP3
    • Port
    • Provisioning
    • Redirect Server
    • Registrar
    • Router
    • RTP
    • Rubber cover
    • Server
    • SIP
    • SIP-Port
    • SIPS
    • SLAAC
    • SMTP-Server
    • STUN
    • Subnet mask
    • Switch
    • TCP
    • TLS
    • UDP
    • Update
    • Update-Server
    • URI
    • URL
    • VLAN
    • VoIP
    • VoIP Account
    • VoIP Address
    • VoIP Provider
    • VPN
    • Dial Preparation
    • XML
    • Certificate

About these instructions

Certificate