Signalling Procedures - Signalling between the Outgoing International R2 Register and the Last Incoming R2 Register - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp
The usual System R2 signalling procedure is to request in succession the remainder of the address digits stored in the outgoing international R2 register by the repetitive use of signal A-1 until it is determined at the incoming end that the complete addr