Operation Manual
Table Of Contents
- Copyright
- Warranty
- Declaration of conformity
- Safety instructions
- Disposal of the product
- Hardware Components
- User Interfaces
- User and Administrator Mode
- Documentation
- Phone Installation
- Phone Initialization
- Registration
- Idle Screen
- Phone User Interface
- Web User Interface
- General Configuration Tasks
- Display Configuration Tasks
- Audio Configuration Tasks
- SIP Identity Configuration Tasks
- Function Key Configuration Tasks
- Maintenance Tasks
- Outgoing Calls
- Extension (SIP identity) for Outgoing Calls
- Making Calls
- Auto Completion (Number Guessing)
- Call Completion
- Call Termination
- Redial
- Call Indication
- Accepting Incoming Calls
- Call Waiting
- Denying Incoming Calls
- Denying Incoming Calls Automatically
- DND (Do Not Disturb) Mode
- Call Forwarding
- Audio Operation Modes
- Mute / Unmute
- Multiple Speaker Mode
- Hold and Resume
- Call Transfer
- Conference
- Call Recording
- Logoff All Users (Extensions/SIP Identities)
- Logon New User (Extension/SIP Identity)
- Access
- Access
- Availability
- Access
- Changing the Presence State
- Contact Presence
- Acoustical Indication
- Visual Indication
- Retrieve New Messages
- Busy Lamp Field (BLF) feature
- “Calls” List
- Call Pickup

User Manual - English
61
Call Waiting
This call feature allows your phone to accept other incoming calls to an extension (SIP identity)
extB already in an active call.
L Note: The default setting has to be configured in advance:
Setup Advanced Audio Call Waiting Indication:
<ON>: A recurring knocking sound will be heard in the background of the ongoing
call to signal further incoming calls.
<VISUAL> Further incoming calls are indicated only on the display.
One free function “Line” key per call is required (see page 39).
Example: There is one active call from extA indicated by the permanently lit LED1.
ip810c ip820c ip830c ip840c
extA 1:10
'extA
1:10
… … … …
—— Connected ——
extA
Connected time
e
extA
f
extB
LED1 P1
P1
LED1
LED2 P2
P2
LED2
Action: Receive another incoming call at extC while in an active call at extA.
ip810c ip820c ip830c ip840c
Another incoming call is signalized on the display and by the blinking LED2.
extA 1:10
extC
'extA
1:10
extC
… … …
—— Connected ——
extA
extC
Connected time
e
extA
f
extB
1:10
extC
LED1 P1
P1
LED1
LED2 P2
P2
LED2
Answer the call by pressing the free function “Line” key next to the blinking LED2.
Result: The first active call on the free function “Line” key P1 is placed on hold
and the 2
nd
incoming call on the free function “Line” key P2 is accepted. This is
indicated by a slowly blinking LED1 and a permanent lit LED2. Additionally a tone
sequence can be played to remind you of the waiting call.