Multi-Tech Systems MVP-2400, MVP-2410, MVP-3010 manual 150, Ring-On, Ring-Off

Models: MVP-3010 MVP-2400 MVP-2410

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Technical Configuration (Digital Voips)

MultiVOIP User Guide

 

 

 

 

 

 

 

 

 

 

 

 

T1 Parameter Definitions (cont’d)

 

 

 

 

 

 

Field Name

 

Values

Description

 

 

 

 

 

 

CAS Protocol

 

E&M Immed Strt

Channel Associated Signaling

 

 

 

E&M Wink Start

(CAS) is a method of incorporating

 

 

 

E&M Wink with

telephony signaling info into a T1

 

 

 

dial tone

voice/data stream. In CAS, the

 

 

 

FXO Ground Strt

signaling bits (the A, B, C, and D

 

 

 

bits) are multiplexed into the signal

 

 

 

FXO Loop Start

 

 

 

stream of each T1 channel. (By

 

 

 

FXS Ground Strt

 

 

 

contrast, in Common Channel

 

 

 

FXS Loop Start

 

 

 

Signaling (CCS), one channel

 

 

 

 

 

 

 

 

handles signaling for all other

 

 

 

 

channels.) Each CAS protocol

 

 

 

 

defines the states of the signaling

 

 

 

 

bits during the various stages of a

 

 

 

 

call (IDLE, SEIZED, ANSWER,

 

 

 

 

RING-ON, RING-OFF).

 

 

 

 

The CAS protocol code allows the

 

 

 

 

VOIP to interact properly with the

 

 

 

 

PBX or central-office switch that it

 

 

 

 

serves. The need to download

 

 

 

 

CAS protocols arises for only a

 

 

 

 

small minority of VOIP users, and

 

 

 

 

only when PBX/switch is found to

 

 

 

 

be incompatible with standard

 

 

 

 

protocols.

 

 

 

 

Match this parameter to the setting

 

 

 

 

of PBX or central-office switch.

 

 

 

 

 

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Multi-Tech Systems MVP-2400, MVP-2410, MVP-3010 manual 150, Ring-On, Ring-Off