Method for establishing a communication transmission (ALTV), wherein upon detecting an original signalling (SIG RA) directed outgoing from a first terminal to a second terminal within the scope of establishment of a connection, the second terminal being addressed via a target address associated with the second terminal, - it is recorded in what quantity further signallings (SIG RA) having the same sender address specifying the first terminal and the same target address are detected within the scope of further attempts to establish a connection, - an evaluation of time information is carried out with regard to the times of the detection of the detected original signalling (SIG RA) and the detected further signallings (SIG RA) in relation to at least one predetermined time period, characterised in that - with a positive evaluation result, and in the event of exceeding the recorded number of detected further signallings with the same sender address and the same target address compared to a comparison value, an alternative communication transmission (ALTV) is established, wherein a) the time information is formed as at least one first time difference between the detection of two sequential signallings (SIG RA) of the original signalling (SIG RA) and the further signallings (SIG RA), and b) the at least one time period represents an upper limit for one individual time difference of the at least one first time difference(s), and c) a result of the evaluation is evaluated as a positive evaluation result, provided all of the at least one first time difference(s) are smaller than the at least one time interval. - it is recorded in what quantity further signallings (SIG RA) having the same sender address specifying the first terminal and the same target address are detected within the scope of further attempts to establish a connection, - an evaluation of time information is carried out with regard to the times of the detection of the detected original signalling (SIG RA) and the detected further signallings (SIG RA) in relation to at least one predetermined time period, - with a positive evaluation result, and in the event of exceeding the recorded number of detected further signallings with the same sender address and the same target address compared to a comparison value, an alternative communication transmission (ALTV) is established, wherein a) the time information is formed as at least one first time difference between the detection of two sequential signallings (SIG RA) of the original signalling (SIG RA) and the further signallings (SIG RA), and b) the at least one time period represents an upper limit for one individual time difference of the at least one first time difference(s), and c) a result of the evaluation is evaluated as a positive evaluation result, provided all of the at least one first time difference(s) are smaller than the at least one time interval. a) the time information is formed as at least one first time difference between the detection of two sequential signallings (SIG RA) of the original signalling (SIG RA) and the further signallings (SIG RA), and b) the at least one time period represents an upper limit for one individual time difference of the at least one first time difference(s), and c) a result of the evaluation is evaluated as a positive evaluation result, provided all of the at least one first time difference(s) are smaller than the at least one time interval.