IEPL
IEPL usually refers to a connection carried over a carrier-provided Ethernet private line. Part of the transmission path uses a relatively controlled network, reducing dependence on changes in public internet routing. The private line still relies on the entry point, exit point and local network; it does not mean the application server is also on a private network.
This type of transport typically involves higher link and capacity costs, making it suitable for use cases where sustained connections, meetings or performance during busy periods matter. Judge it by whether it is more stable for your actual tasks, rather than assuming that every dedicated route performs the same across all regions and times. Wireless signal quality, device load and issues with the destination service can still affect performance.