Methods and devices for signalling in a communication network

A first node in a communication network comprising:

• a processor;
• and
• a storage unit containing instructions which, when executed by the processor, cause the first node to:
• receive a plurality of instructions transmitted from a second node of the communication network, wherein the instructions comprise respective actions to be performed by a device at the first node and wherein at least one of the instructions is a conditional instruction specifying an action, along with another action of another instruction, in which the conditional instruction only performs the action on a condition that the another action has been previously performed;
• perform respective actions of the plurality of instructions and for the conditional instruction, perform the action only on the condition that the another action has been previously performed;
• and
• send an acknowledgement signal on completed actions.

A second node in a communication network, the second node being a point of signaling with a first node in the communication network, comprising:

• a processor;
• and
• a storage unit containing instructions which, when executed by the processor, cause the second node to:
• send a plurality of instructions to the first node, wherein the instructions comprise respective actions to be performed by a device at the first node and wherein at least one of the instructions is a conditional instruction specifying an action, along with another action of another instruction, in which the conditional instruction only performs the action on a condition that the another action has been previously performed;
• and
• receive an acknowledgement signal on completed actions from the first node, in response to the first node performing respective actions of the plurality of instructions and for the conditional instruction, the first node performs the action only on the condition that the another action has been previously performed.