On one switching network, generally total line on bundle in on TO group will bigger from total line on bundle out on TS group ( m > n ). so, on condition that all server dwelled, that call that come (as overflow traffic) will block or cannot served, if that call :
- Disappeared, then switching networks is work to comply with loss system.
- Waiting until free line out available, then dwelled, then switching network is work to comply with waiting time system.
With note:
a. Limit waiting time
b. Total call that must wait is limit.
With offered traffic, carried traffic, and lost traffic.