On the MaxoTel network, only caller ID's that have been authorised on your account may be used as caller ID.
Examples of authorised caller ID include:
The easiest way to see what caller ID's are valid on your account is to browse through the available options when setting the caller ID on an extension.
To do so, complete the follow steps:
1. Log in to the Portal
2. Select "Hosted PBX Extensions" on the menu
3. Click the "Edit" button next to one of your extensions
4. Drop down the Caller ID box and browse through the available options