If you have many lines in your Aloware account, it might be tough to choose one each time you make an outgoing call. For outgoing calls, you may set a user's default phone number as an admin.
Assigning a Default Number for Outbound Calls
Navigate to the User menu
Select from the list of users and click the Settings button
Navigate to Outbound Call Settings
In the Default Outbound Line, select the Use Account default
You can set this up from the Account menu > Calling Settings > Outbound Line and the user uses the assigned default number
Click the Save button
Whenever you make an outbound call, it automatically use the default line.