12
VOIP48 8 CHANNEL DSP EXPANSION BOARD
The VoIP48 8 channel DSP expansion board is used to add 8 IP MGW channels to the
system. It has AC498 DSP circuit on it.
SPEECH CHANNEL STRUCTURE
MS48IP system has 12 TDM speech channels for all extensions and trunks. 10 of
these channels can be used for outgoing and incoming calls and two channels are
reserved for incoming calls only.
Together with the EXP48IP VoIP module, the system may have up to 12 IP MGW
channels. The basic capacity is 4 and the channel number can be increased to 8 by
using 4 channel DSP expansion module or to 12 by using 8 channel DSP expansion
module. The IP MGW channel number is directly related to the IP extension and trunk
capacity of the system.
The IP extension and trunk numbers of the system are flexible and can be defined by
programming the IP MGW channels of the system accordingly. The table below shows
the maximum number of IP ports with respect to the system configuration:
EXP48IP VoIP
Card
DSP Expansion
Board
Number of IP
extensions
Number of IP
trunks
+
-
8
4
+
4 channel
16
8
+
8 channel
24
12
THE NUMBERING PLAN
The system comes with a fixed numbering plan which can then be changed by flexible
numbering programs of the system. As per the default numbering plan, the extension
numbers are of three digits and starts from 111 whereas the trunk numbers are of two
digits and start from 01.
The system automatically sets the default numbering plan with respect to the installed
capacity of the system.
Summary of Contents for MS48IP
Page 1: ...www karel com tr TECHNICAL REFERENCE AND INSTALLATION GUIDE 09 2010 TELEPHONE EXCHANGE...
Page 2: ...MS48IP TECHNICAL REFERENCE AND INSTALLATION GUIDE September 2010...
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Page 15: ...7 The functional block layout of the cards is shown below Figure 6...
Page 18: ...10 Figure 9 The dimensions of the EXP48 2 6 are 14 5 cm x 16 5 cm and it weighs 0 3 kg...
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