Configuring The Sending Of Lcfo Signals; Configuring Fxo Voice Subscriber Line; Configuration Prerequisites; Configuration Guidelines - HP FlexNetwork MSR Series Configuration Manual

Configuring the sending of LCFO signals

You can configure an FXS voice subscriber line to send a loop current feed open (LCFO) signal to
indicate a disconnection to the peer. This feature is used mainly in North America.
To configure the sending of LCFO signals:
Step
1. Enter system view.
2. Enter FXS voice subscriber
line view.
3. Enable the FXS voice
subscriber line to send an
LCFO signal at hangup.
4. Configure the LCFO signal
duration.

Configuring FXO voice subscriber line

This section covers the prerequisites and procedures for configuring an FXO voice subscriber line.

Configuration prerequisites

•
The router is equipped with an applicable FXO interface card.
•
The basic functions of FXO voice subscriber lines are configured.

Configuration guidelines

•
To implement the CID function, the VoIP router must be capable to receive calling identity
information in the on-hook state, the hardware and software of PBX must support this service,
and the called telephone must be able to receive and display calling identity information (such
telephones are CID I or CID II class) in the on-hook or conversation state.
•
The call date and time transmitted in data-message format is the router system time. To ensure
correct call time, use the clock command to synchronize router time with the local standard
time.

Configuration procedure

To enable calling identity information receiving and sending:
Step
1. Enter system view.
2. Enter FXO voice subscriber line view.
Command
system-view
subscriber-line line-number
disconnect lcfo
timer disconnect-pulse
milliseconds
Command
system-view
subscriber-line
line-number
37
Remarks
N/A
N/A
Optional.
By default, an FXS voice
subscriber line does not send
an LCFO signal at hangup. It
plays busy tones to the peer.
Optional.
750 milliseconds by default.
Remarks
N/A
N/A