3com MSR 20-20 참조 매뉴얼

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If a number is configured in the number template for the POTS entity 
associated with the local FXO interface, the interface substitutes this number 
for the calling number and sends it to the called side.

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If wildcard dots (.) are used in the number configured in the number template 
for the POTS entity associated with the local FXO interface, the interface 
substitutes zeros for the calling number’s digits in the place of dots, for 
example, 1000 for 1... and then sends the substitution number to the called 
side.

# Enable CID on voice subscriber line 1/0.

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] subscriber-line 1/0

[Sysname-voice-line1/0] cid receive 

FXS/FXO voice subscriber line view

None

Use the cid send command to enable the FXS or FXO voice subscriber line to send 
calling numbers to the remote end.

Use the undo cid send command to disable the FXS or FXO voice subscriber line 
from send calling numbers to the remote end.

By default, the FXS or FXO voice subscriber line sends calling numbers to the 
remote end.

After you configure the undo cid send command, the FXS or FXO voice 
subscriber line will not send any calling number to the called side, whether the 
originating side has sent it or it is configured in the number template for the voice 
entity associated with the FXS or FXO voice subscriber line.

# Disable voice subscriber line 1/0 from sending calling numbers to the IP network.

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] subscriber-line 1/0

[Sysname-voice-line1/0] undo cid send 

cid type { complex | simple }