Introduction

The Outbound caller ID defines how the Caller ID for outgoing calls is defined.

Example outgoing invite and the location of the Caller ID (highlighted)

From: "DE900 Office" <sip:492111234567@192.168.178.164>;tag=as7a13dafb

SIP Display info: "DE900 Office"

SIP from address: sip:492111234567@192.168.178.164
SIP from address User Part: 492111234567
SIP from address Host Part: 192.168.178.164
SIP from tag: as7a13dafb

To: <sip:0123456789@proxy2.sip.x2c.nl:5060>

SIP to address: sip:0123456789@proxy2.sip.x2c.nl:5060
SIP to address User Part: 0123456789
SIP to address Host Part: proxy2.sip.x2c.nl
SIP to address Host Port: 5060
Contact: <sip:492111234567@192.168.178.164:5060>
Contact URI: sip:492111234567@192.168.178.164:5060
Contact URI User Part: 492111234567

How to change the Caller ID.

Every user sends the same outgoing number.
 

 Go to the SIP configuration, menu: Administration - Routes - SIP gateways and edit the SIP gateway.

Advanced parameters 

Add the SIP parameters fromuser like in the example below.

This will cause that in every outgoing call the "Main" number is send.

Every user sends his own extension number only

1. Remove the advanced parameter "fromuser"
2. Administration - Routes -Gateway groups, select your Gateway group.
3. s/ ^(.*) / $1

Every user sends national number format with last digits own extension.

1. Remove the advanced parameter "fromuser"
2. Administration - Routes -Gateway groups, select your Gateway group.
3. s/ ^(.*) / 2111234$1

Every user sends International number format with last digits own extension.

1. Remove the advanced parameter "fromuser"
2. Administration - Routes -Gateway groups, select your Gateway group.
3. s/ ^(.*) / 492111234$1