A VLN (Virtual Long Number) is a unique, long-form phone number used for various services such as voice calls, text messages, and video calls. It is provided to businesses by mobile messaging providers and can be used to receive both SMS messages and voice calls
. VLNs allow SMS messages and voice calls to be routed via the internet, making them cheaper and quicker to provision compared to short codes. They can be used internationally, support voice natively, and can be easily obtained from mobile messaging providers with SS7 access
. Additionally, VLNs are used as reference numbers for tracking visa applications in Australia
