✅SDCCH - Stand-alone Dedicated Control Channel

Signaling exchange with the network

Authentication

Cyphering

Call setup

Transmit SMS

SDCCH - Stand-alone Dedicated Control Channel

The Stand-alone Dedicated Control Channel (SDCCH) is a crucial component in GSM networks. It manages signaling and control operations between mobile stations and the network, facilitating tasks such as:

• Call Setup: Handling the initial phase of establishing a voice call.

• Location Updating: Allowing mobile devices to update their location in the network.

• SMS Transmission: Assisting in sending and receiving SMS messages.

• Authentication and Encryption: Ensuring secure communication through verification and privacy measures.

SDCCH operates independently of traffic channels, enabling efficient management of network resources.