| R1200 / R1200w ISDN BRI Interface License | 24263 |
| 用户手册 (English) |
| R4100 Additional PRI interface License | 24565 |
| 用户手册 (English) |
| R1200 / R1200w 50 VPN Tunnel Licenses | 24260 |
| 用户手册 (English) |
| R4100 Additional X.25 Full Feature Set | 24562 |
| 用户手册 (English) |
| R4100 Additional BRI interface License | 24564 |
| 用户手册 (English) |
| R4300 IP Additional X.21 interface License | 24566 |
| 用户手册 (English) |
