Your telephone system may require you to add a number e.g. 9 in front of any external numbers you dial. Flexor can be configured to do this for you using Dialing Rules. These are part of the device configuration settings of Flexor. These can be found under Flexor Devices and Applications which can be reached from Flexor OnScreen, Options or right clicking on the Flexor task tray icon.
Please click on this link to the User guide for instructions on what to do next.
You can also add rules to the Advanced settings if you need to manipulate numbers to cope with requirements such as long distance numbers.