> For the complete documentation index, see [llms.txt](https://ss7.learn-telecom.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ss7.learn-telecom.com/stack-layers/applications/sccp.md).

# SCCP

SCCP is the transport layer and routing mechanism for TCAP messages. Enable SCCP on the SS7 stack if TCAP messaging is to be used.

<figure><img src="https://719820624-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWeBTDYayOEH9WCUivTL%2Fuploads%2FRpkZlrPGrFhy8UKMUJAS%2Fimage.png?alt=media&amp;token=28b7c57e-4597-4571-b03e-bf8ab0e1a443" alt=""><figcaption></figcaption></figure>

### SCCP Global Titles

<figure><img src="https://719820624-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWeBTDYayOEH9WCUivTL%2Fuploads%2FV3ConWYDPXZ06OyByHl0%2Fimage.png?alt=media&amp;token=61c272cd-2d4b-47c5-9db8-8c504e379e45" alt=""><figcaption></figcaption></figure>

### SCCP SSNs

<figure><img src="https://719820624-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWeBTDYayOEH9WCUivTL%2Fuploads%2FtsKlFph03QE37yi9TfFc%2Fimage.png?alt=media&amp;token=9e4a45ab-d0c0-4b61-b9c7-9a994a3b3717" alt=""><figcaption></figcaption></figure>