Multi-Tech Systems Mvp-2400/2410/3010, Mvp-210/410/810 Voice/ip Gateways User Guide

MultiVOIP User Guide Technical Configuration (Digital)
111
Voice/Fax Parameter Definitions (cont’d)
Field Name Values Description
Dynamic Jitter
Maximum
Jitter Value60 to 400
msThe default maximum dynamic
jitter buffer of 300 milliseconds is
the maximum delay tolerable over a
high jitter network.
Default = 300 msec
Optimizat-
ion Factor0 to 12 The Optimization Factor
determines how quickly the length
of the Dynamic Jitter Buffer is
changed based on actual jitter
encountered on the network.
Selecting the...

MultiVOIP User Guide Technical Configuration (Digital Voips)
112
Voice/Fax Parameter Definitions (cont’d) )  
Field Name Values Description
Auto Disconnect
Automatic
Disconnect-
ion-- The Automatic Disconnection
group provides four options which
can be used singly or in any
combination.
Jitter Value 1-65535
milli-
secondsThe Jitter Value defines the average
inter-arrival packet deviation (in
milliseconds) before the call is
automatically disconnected. The
default is 150 milliseconds. A higher
value means...

MultiVOIP User Guide Technical Configuration (Digital)
113
9. Set T1/E1/ISDN Parameters.  This dialog box can be reached by
pulldown menu, toolbar icon, keyboard shortcut, or sidebar.
Accessing “T1/E1/ISDN Parameters”
Pulldown Icon
Shortcut Sidebar
     Ctrl + T 

MultiVOIP User Guide Technical Configuration (Digital Voips)
114
In each field, enter the values that fit  your particular network. 

MultiVOIP User Guide Technical Configuration (Digital)
115
T1 Parameters.  The parameters applicable to T1 and their values are
shown in the figure below.  These T1 Parameter fields are described in
the tables that follow. 

MultiVOIP User Guide Technical Configuration (Digital Voips)
116
T1 Parameter Definitions
Field Name Values Description
T1/E1/ISDN T1 North American standard.
Long-Haul
ModeY/N In Long-Haul Mode, the
MultiVOIP auto-matically
recovers received signals as low
as –36 dB.  The maximum
reachable length with 22 AWG
cable is 2000 meters.  When
Long-Haul Mode is disabled,
signals as low as –10 dB can be
received.
Default: disabled.
CRC Check
(Cyclic
Redundancy
Check)Y/N When enabled, allows
generation and...

MultiVOIP User Guide Technical Configuration (Digital)
117
T1 Parameter Definitions (cont’d)
Field Name Values Description
CAS Protocol E&M Immed Strt
E&M Wink Start
E&M Wink with
dial tone
FXO Ground Strt
FXO Loop Start
FXS Ground Strt
FXS Loop StartChannel Associated Signaling
(CAS) is a method of
incorporating telephony
signaling info into a T1
voice/data stream.  In CAS, the
signaling bits (the A, B, C, and
D bits) are multiplexed into the
signal stream of each T1
channel.  (By contrast, in
Common...

MultiVOIP User Guide Technical Configuration (Digital Voips)
118
T1 Parameter Definitions (cont’d)
ISDN Parameters
Field Name Values Description
Enable
ISDN-PRIY/N
If digital connection is ISDN-
PRI type, this box should be
checked. When ISDN is
enabled, the “CAS Protocols”
field is grayed out (ISDN has its
own signaling method).
Terminal/
Networkeither
“Terminal” or
“Network”When “Terminal” is selected, it
indicates that the MultiVOIP
should emulate the subscriber
(terminal) side of the digital...

MultiVOIP User Guide Technical Configuration (Digital)
119
T1 Parameter Definitions (cont’d)
Field Name Values Description
Line Build Out 0 dB,  -7.5 dB,
-15 dB, -22.5 dBTo reduce the crosstalk on
received signals, a transmit
attenuator can be placed in the
data path.  Transmit attenuation
is selectable.  Default: O dB
Pulse Shape
Level0 to 40 Meters
40 to 81 m
81 to 122 m
122 to 162 m
162 to 200 mRefers to length of cable
between MultiVOIP and
PBX/telco in meters. Most
common will be 0 to 40m.
Clocking...

MultiVOIP User Guide Technical Configuration (Digital Voips)
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E1 Parameters.  The parameters applicable to E1 and their values are
shown in the figure below.  These E1 Parameter fields are described in
the tables that follow.