Create a second URI to use the register number
1. Open the IP Office Configuration.
2. CLick on the LIne tree from the IP Office configuration.
3. Click on the SIP line Tab.
4. CLick on the URI tab
5. CLick New and add a new URI using Use Credentials User Name for the Local URI, Contact and Display Name.
6. CLick on Use registration
8. Enter a new Line Group number for outgoing such as 18. This has to be different that the first URI.
9. CLick Ok.
10. CLick on the ARS table used to dial out and change LIne group 18.