Don't quite undertstand what the significance of 1/0:23 is for the following config. Is the "voice-port 1/0:23" command required if only an E1 card is installed in the Voice Gateway?
i guess that is to let the system now the control channel is 1/0:23 for T1 line.
all isdn control signalling will be sent over that channel. also to activate the channel.
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