| 操作 | 无状态 | 有状态 |
|---|---|---|
| SIP forward | forward() | t_relay() |
| SIP replying | sl_send_reply() | t_reply() |
| Create transaction | t_newtran() | |
| Match transcation | t_check_trans() |
| 操作 | 无状态 | 有状态 |
|---|---|---|
| SIP forward | forward() | t_relay() |
| SIP replying | sl_send_reply() | t_reply() |
| Create transaction | t_newtran() | |
| Match transcation | t_check_trans() |