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Deskmaster
13.5 Programming Multiple Subscriber Numbers (MSN)
By programming an MSN number, each phone of the ISDN bus can be directly addressed upon an
incoming call. This of course requires that this “dial-in” number is known to the caller. If no MSN has
been programmed, the ISDN phone will accept all calls to the ISDN bus. With MSN’s programmed, the
phone will only react to calls received with one of the MSNs programmed. The Deskmaster 510i sup-
ports 3 MSNs for voice calls and a fourth one for data calls. The Deskmaster 520i has an additional
MSN number for the analog port. To the MSNs for voice calls a personalised ringing tone can be
assigned. Consult your network provider for more MSN numbers on you ISDN line.
13.5.1 MSN for Voice Calls
• Go to the system parameter menu.
• Go to the MSN menu.
The menu can be accessed directly
using the shortcut 259.
• The first MSN will be displayed.
With the LEFT arrow key ( ),
an existing entry can be deleted.
• Display MSN 2. Enter a new MSN.
• New or modified MSN will be stored.
13.5.2 MSN for Data Calls
This function is only available on the Deskmaster 510i and 520i.
• Go to the system parameter menu.
• Go to the MSN menu.
The menu can be accessed directly
using the shortcut 259.
• The first MSN will be displayed.
3* • Select the V.24 MSN.
• Enter a new V.24 MSN
• New or modified MSN will be stored.
250 System param.
System param.
253 charge
259 MSN
MSN : 1 (Voice)
10
MSN : 2 (Voice)
11
250 System param.
System param.
253 charge
259 MSN
MSN : 1 (Voice)
MSN : 4 (Data)
MSN : 4 (Data)
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HL_DM5201_GB.qxd 16-04-2003 13:24 Page 34