> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/connect-v3.1-en/firma/administracionconnectfirma/canal/configuracion_canal_bidireccional_con_firma.md).

# Bidirectional channel

When the *channels* if they are bidirectional and have the signature feature in only one of the two directions, the direction that is not for signature will be configured in the usual way.

When the *channels* if they are bidirectional and have the signature feature in both directions, each of them will be configured as explained in the previous sections.


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