The SAAL layer resides between the ATM layer and the Q.2931 function. SignallingATM Adaption Layer (SAAL) provides reliable transmission of Q.2931 messages between so-called Q.2931 instances, such as ATM switches and hosts, via the ATM layer. The Service Specific Connection Oriented Protocol (SSCOP) resides on the SAAL layer.
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|Englisch:||signalling ATM adaption layer - SAAL|