CCCH
Common Control Channel
Common Control Channels support common procedures required to establish a dedicated link with the network. Typical channels include the RACH (Random Access Channel), PCH (Paging Channel) and AGCH (Access Grant Channel) within GSM. In GPRS the common control channels include the PRACH (Packet Random Access Channel), PPCH (Packet Paging Channel) and PAGCH (Packet Access Grant Channel).