Enabling E&M control signals pass-through
This feature operates only when the E&M non-signaling mode is enabled. As shown in Figure 6, an E&M virtual private line is established between the tone generator and the radio. Enable E&M control signals pass-through for Router A and Router B so that they can send seize and idle signals for the E&M virtual line over the IP network.
Figure 6: E&M analog control signals pass-through
To enable E&M control signals pass-through:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter voice interface view. | subscriber-line line-number | N/A |
3. Enable E&M control signals pass-through. | passthrough | By default, this feature is disabled. Configure this command on both the originating and terminating devices. |