Multi-Tech Systems MVP-2410 ユーザーズマニュアル

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The following parameters must be known about the PBX or telco 

central office equipment to which the E1 MultiVOIP will connect:  

Ê

  E1 Phone Parameters 

 

E1 Telephony Parameters:
Record for this VOIP Site

#

 

 

• Which frame format is used?  

Double Frame

_____  

MultiFrame w/ CRC4

_____  

MultiFrame w/ CRC4 modified

_____  

 

• Which CAS or PRI protocol is used? ______________ 

 

• Clocking: Does the PBX or telco switch use  

internal

 or 

external

 clocking? _________________ 

Note that the setting used in the voip unit will be the 
opposite of the setting used by the telco/PBX. 

 

• Which line coding is used?  

AMI

___ or  

HDB3

___ 

 

• Pulse shape level?: (most commonly 0 to 40 meters) 

 

Write down the values for these E1 parameters.  You will need to enter 

these values in the “T1/E1 Parameters” screen in the Configuration 

section of the MultiVOIP software.