Technical data

Table Of Contents
550 COMpact 3000 analog/ISDN/VoIP - Firmware Version 4.0 - Version of the Manual 03 02/11
Short Operation Instructions
Telephoning
Delete callback on busy ahead of
time: # 37
#
Initiate reservation of exchange line
on busy:
*
37
#
= Flash key or Query key
Conference Calls
Initiate a conference call during a
query call:
3
End a conference call: (hang up)
Connect both conference call
partners:
4
Back to the communication partner
previously been active (query):
2
Back to the communication partner
previously been on hold (query):
1
= Flash key or Query key
InterCom Announcement/Handsfree:
Initiate
Call system telephone for
InterCom announcement: ## 011
Call system telephone for
InterCom handsfree: ## 012
= ** + internal telephone number of the system telephone (If you do
not use a direct exchange line access, omit the **.)
Pickup and Call Pickup
Accept call for another telephone
(pickup): ## 06
Callback/Exchange Line Reservation:
Initiate
1
1
1
Take a call from the answering
machine: ## 06
= ** + internal telephone number of the telephone/answering
machine (If you do not use a direct exchange line access, omit
the **.)
Query and Splitting
Initiate an internal query call:
Initiate an external query call:
Terminate query call on no reply:
1
Speak to each communication
partner going back and forth
between the two during a query call
(splitting):
2
Terminate call on hold and continue
the call previously been active during
a query call:
0
Terminate active call during a query
call and continue the call with the
communication partner previously
been on hold:
1
Connect both communication
partners during a query call by
hanging up the receiver: (hang up)
= Flash key or Query key
= ** + internal telephone number of the individual telephone (If you
do not use a direct exchange line access, omit the **.)
or ** + internal telephone number of the line group (If you do not
use a direct exchange line access, omit the **.)
= external telephone number (If you do not use a direct exchange
line access, dial the exchange line access number before dialling
the telephone number.)
or ** + short code number (If you do not use a direct exchange line
access, omit the **.)
Query and Third Call
Initiate a third call with an internal
telephone:
5
Pickup and Call Pickup
1
2
1
2
1