Device Settings on the IP Phone E with SIP FirmwareTable 41

97
Multiple Appearance Directory Number
(Single Call Arrangement)
Note: Only users of the Communication Server 2000 (CS 2000) and
Communication Server 2100 (CS 2100) have access to the Multiple
Appearance Directory Number (MADN) Single Call Arrangement (SCA)
feature at this time.
The Multiple Appearance Directory Number (MADN) allows a Directory
Number (DN) to appear on more than one IP Phone E with SIP
Firmware. The MADN with Single Call Arrangement (SCA) feature allows multiple telephones to appear as a single line to a caller. Anyone of the
IP Phone E telephones in a group with MADN can initiate or answer a call, but only one call can be active at any given time. Any other user in the group can join the active call by picking up the handset of the IP Phone
1140E with SIP Firmware.
With the MADN SCA feature configured on multiple telephones of different registered SIP users, the telephones share one single DN. An incoming call to this DN causes all the telephones in the group to ring.
Any user of an IP Phone E with the MADN SCA feature can put a call on hold or can prevent others from joining in the active call.
If a user’s group is active (as seen byline icon being off-hook) and the user picks up the handset, the user is automatically joined to an ongoing MADN
call (unless the server restricts this feature for privacy or other factors).
Vertical services
Vertical services are CS 2000 and CS 2100 features that can be activated or deactivated by dialing a defined code, for example, Privacy. Even though no more than one active session can be established for the MADN SCA
group, members of the group can still enter certain vertical services.
Currently, the available vertical service is Privacy.
SIP Firmware Release 1.1 for IP Phone E Administration
NN43113-300 Standard May Copyright © 2008, Nortel Networks