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Configuring 2W-FXS Port Parameters for VComp Bundles (CTPView)

This topic describes how to configure port parameters for 2W-FXS interfaces.

Before you begin:

  • Log in to the CTPView software at least at the Net_Admin level.

  • Connect the CTPView server to the CTP device for which you want to configure bundles.

  • Disable the bundle before you modify the bundle options.

To configure port parameters for 2W-FXS interfaces using CTPView:

  1. In the side pane, select Bundle > Configuration.
  2. Run your mouse over the Display and Select an Existing Bundle bar.
  3. In the table of bundles, select the bundle that you want to modify.
  4. Under Port Options, configure the parameters described in Table 1.
  5. Click Click to Submit Bundle AND Port Changes.
Table 1: VComp Bundle 2W-FXS Port Parameter Settings in CTPView
Field Function Your Action

Voice Port Tx Gain

[ -15.0 to 10.4 dB ]

Specifies the gain in the direction from the analog interface toward the IP network.

Select a dB value from the list.

Voice Port Rx Gain

[ -15.0 to 10.4 dB ]

Specifies the gain in the direction from the IP network to the analog interface.

Select a dB value from the list.

Voice Port Signaling

Specifies the type of analog signaling used.

Select one:

  • ground start—Typically used between a central office (CO) and a PBX to prevent glare. Glare occurs when the FXS device establishes a call and the FXO device attempts to make a call before the ring is detected.

  • loop start—Typically used for residential phones.

Voice Port PLAR

Enables or disables private line automatic ringdown (PLAR) signaling. PLAR allows you to connect two 2W-FXS interfaces.

You must set signaling to loop start before you enable PLAR.

For PLAR to work, both ends of the bundle must have PLAR enabled.

With PLAR, two handsets are directly connected so that when someone picks up a handset, the handset at the remote end starts to ring. There is no call routing (dialing) involved.

To hear ringback, the audible tone in the handset indicating that the far end is ringing, you must enable tone detection for the bundle.

Select one:

  • Disabled

  • Enabled