Multi-Tech Systems MULTIVOIP MVP-410ST/810ST - Manual (Page 126)

Technical Configuration (T1/E1) MultiVOIP User Guide
126
E1 Telephony Parameters (for MVP3010)
The following parameters must be known about the PBX or telco
central office equipment to which the E1 MultiVOIP will connect:
9 E1 Phone Parameters
Ask phone company or
PBX maintainer.
Info needed to operate:
MVP3010
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.