Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 497
Default end-to-end
Parameters high — specifies that the output signaling lead is forced on
low — specifies that the output signaling lead is forced off
end-to-end — specifies that the output signaling lead follows that of the remote end
m
Syntax m {high | low | end-to-end}
Context config>port>voice>em>signaling-lead
Description This command configures the input signaling lead known as the M-lead (Mouth, Magneto, or
Multiplexer).
This command is valid only if signaling-mode is configured for E&M signaling.
Default end-to-end
Parameters high — specifies that the input signaling lead is forced on
low — specifies that the input signaling lead is forced off
end-to-end — specifies that the input signaling lead follows that of the connected
equipment
signaling-mode
Syntax signaling-mode {em | transmission-only}
Context config>port>voice>em
Description This command configures the signaling mode for the specified port or channel. This
configuration is done for groups of three ports (ports 1 to 3 and ports 4 to 6). The first port to
be configured in the group sets the signaling mode for the other ports in the group. For
example, if port 1 is set for transmission only, ports 2 and 3 must also be set for transmission
only, and if port 4 is set for E&M signaling, ports 5 and 6 must also be set for E&M signaling.
To change the signaling mode of a port, all ports in the group must first be deconfigured.
Default em
Parameters em — specifies E&M signaling mode
transmission-only — specifies transmission-only mode. This parameter is not valid if
audio-wires is configured for two-wire operation.
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