> For the complete documentation index, see [llms.txt](https://gsm.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://gsm.learn-telecom.com/gsm-channels/signalling-channels/common-control-channels/point-to-multipoint-channels/pch-paging-channel.md).

# PCH - Paging Channel

Downlink - Used from BTS to MS when the subscriber is **called.**

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