From time-to-time there are issues that pop up with outside calls such as:
- calls dropping after a certain time length
- calls dropping if transferring to a queue with a ring all strategy for more than a certain time length
- call dropping if going to an auto attendant and then going to several extension numbers in sequence based on call forwarding rules
Every dial tone / sip trunk vendor has different tolerances and acts differently based on these scenarios.
The below settings help in these situations