User`s manual

z Polarity Reversal

When enable the Polarity Reversal

Detection, SP50X8A (FXO) will use the

polarity reversal as the answer signal and

polarity normal as the hang-up signal for

FXO outgoing call.

z Loop Current Drop

Use line current drop as the disconnect

signal or not.

z Both

Enable polarity reversal and current drop

simultaneously.

Disconnect Singal Generation z Disable

z Polarity Reversal

Enabling polarity reversal, SP50X8A will

reverse the line polarity when VOIP side is

disconnected.

z Loop Current Drop

This feature is used when the SP50X8A

(FXS) are connected with answering

machines. When the remote site

disconnects, the system will drop FXS

port’s voltage to 0, and make the answering

machines disconnect.

Network connect detection z Disable

z Enable

When it is enabling, Micronet will try to

figure out the network connection status by

sending ping test regularly. When ping is

failed, the SIP register status will be set to

“not registered”.

Traget address The IP address to be used for ping.

Ping Interval The interval to ping the target IP address

FXO Answer after Ring Count When have an incoming call from PSTN,

SP50X8A will answer the call by detect ring

times, default is 2.

Network Unavailabie Tone (SP5018A)

When network connection and register

failed, system will to play notice tone or