Channel B
Channel 64 kbit / s routing data or digitized voice in ISDN.
Canal D Channel 16 or 64 kbit / s signaling routing in ISDN.
Canal semaphore Transmission medium used to transport signaling messages independently of traffic channels. See for example CCITT No. 7.
Secure channel Means of communication between two entities such that an adversary can not change the order, delete, insert or read information (examples: SSL, IPsecWhisper in the ear of someone).
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