> For the complete documentation index, see [llms.txt](https://indoor.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://indoor.router.works/manual/advanced/command-sets.md).
# Command Sets
Secure Shell (SSH) is a cryptographic network protocol that allows access to the router’s command-line interface. The 5G router offers various ways to access the command-line interface.
## **SSH Terminal**
The 5G router offers the most straightforward web terminal interface for browser access. Once you connect to the router, navigate to "Services > Terminal." Alternatively, you can access SSH software on your computer via the SSH port. Click the [SSH Terminal](https://how.router.works/dev/ssh) tutorial for more details.
```
OutdoorRouter login: root
Password:
BusyBox v1.28.4 () built-in shell (ash)
╔═╗╦ ╦╔╦╗╔╦╗╔═╗╔═╗╦═╗╦═╗╔═╗╦ ╦╔╦╗╔═╗╦═╗
║ ║║ ║ ║ ║║║ ║║ ║╠╦╝╠╦╝║ ║║ ║ ║ ║╣ ╠╦╝
╚═╝╚═╝ ╩ ═╩╝╚═╝╚═╝╩╚═╩╚═╚═╝╚═╝ ╩ ╚═╝╩╚═
---------------------------------------
☼ ☼ ☼ OUTDOOR ROUTER ❅ ❅ ❅
---------------------------------------
root@CellularRouter:~#
```
## Command Sets
Once you've accessed the router's SSH port, you can execute OpenWrt UCI to configure parameters, add parameter lists, and even incorporate entire sections into configuration files.
It also enables advanced execution of MMCLI and AT+ command sets to manage the mobile modem installed in the router, allowing you to monitor connection status and modify linking parameters. For more details, please refer to the [Command Sets](https://how.router.works/dev/command) tutorial.
---
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