Configuring E&M non-signaling mode
The E&M non-signaling mode is applied when the E&M interface of the peer device does not provide the M line and E line. In this mode, the E&M interface communicates with the peer device without signaling. You can configure the PLAR feature by using the private-line command to form a three-segment E&M virtual private line (E&M-VoIP-E&M). When a subscriber picks up the phone, the originating device directly dials the number specified by using the private-line command.
To configure E&M non-signaling mode:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter voice interface view. | subscriber-line line-number | N/A |
3. Specify the immediate start mode for the E&M interface. | signal immediate | The default is the immediate start mode. |
4. Enable E&M non-signaling mode. | open-trunk { caller [ monitor interval ] | called } | By default, E&M non-signaling mode is disabled. Configure the open-trunk caller [ monitor interval ] command on the originating device, and configure the open-trunk called command on the terminating device. |
5. Enable the PLAR feature. | private-line string | Use this command on the originating device. For more information about the PLAR feature, see "Configuring dial programs." |