User guide
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See Figure 18.
Step 2: Go to FXO Gateway webpage configuration at SIP Trunk
Modify
SIP Trunk to enable Outgoing Caller ID with both Display Name: PSTN
Caller ID and User ID: PSTN Caller ID as following Figure 19. After this
configuration, FXO gateway send detected Caller ID signal from PABX or PSTN
Lines to remote FXS gateway. There are additional two options at Display
Name and User ID to select what number are going to send to remote FXS
gateway. Here are summary of three options.
a. PSTN Caller ID : Deliver Line number from PSTN or PABX extension. At
this example, they are number from 201 to 205. See Figure 1. And FXO
Caller ID function should be able to detect Caller ID signal correctly.
b. SIP Display Name : See Figure 11 of four SIP Trunk numbers. At this
example, they are number from 1001 to 1004.
c. FXO TEL NO. : See Figure 20 to configure TEL NO from FXO Setting
FXO Line Modify Line Setting TEL NO. Here, default value is
blank. This option allows you to configure your desire Line number to
deliver to remote FXS gateway.