Before you can use this new SIP route configuration you must configure SIP user accounts by using the serctl shell script. We'll continue with user 1000 and 1001. In the Hello World example we happily registered any user that sent a REGISTER message.
Now we require authentication. So open up a terminal window and execute the following two commands:
serctl add 1000 password1 user1@nowhere.com
serctl add 1001 password2 user2@nowhere.com
You will be prompted for a password. This will be your MySQL SER user's password. Refer to the section on setting up MySQL for further instructions on configuring the MySQL user account.
Once the accounts are created you need to update your SIP phones by changing the passwords to whatever you used in the serctl commands. Then reboot your SIP phones and you should be able to complete telephone calls.