Therefore , congestion on the Public Switched Telephone Network may prevent the call from completion unless the user makes additional steps to access the GETS service for landline calls as well .
Finally , a call that receives priority using WPS does not automatically get priority on landline networks .
Congestion on the Public Switched Telephone Network may prevent the call from completion unless the user makes additional steps to access the GETS service for landline calls as well .
Finally , a call that receives priority using WPS does not automatically get priority on landline networks .