3.41 Parameter compatibility information The format of the parameter compatibility information parameter field is shown in Figure 41. 8 7 6 5 4 3 2 1 1 1st upgraded parameter 2 Instruction indicators . . n nth upgraded parameter n+1 Instruction indicators Figure 41/Q.763 - Parameter compatibility information parameter field The following codes are used in the subfields of the parameter compatibility information parameter field: a) Nth upgraded parameter name This field contains the parameter name of the nth upgraded parameter in accordance with Table 5. b) Instruction indicators The format of the instruction indicators subfield is shown in Figure 41.1. 8 7 6 5 4 3 2 1 1 ext.1 G F E D C B A 1a ext.1 O N M L K J I . . 1n 1 More instruction indicators if required Figure 41.1/Q.763 - Instruction indicators subfield The following codes are used in the instructions indicators subfield: bit A Transit at intermediate exchange indicator 0 transit interpretation 1 end node interpretation bit B Release call indicator 0 do not release call 1 release call bit C Send notification indicator 0 do not send notification 1 send notification bit D Discard message indicator 0 do not discard message (pass on) 1 discard message bit E Discard parameter indicator 0 do not discard parameter (pass on) 1 discard parameter bits G F Pass on not possible indicator 0 0 release call 0 1 discard message 1 0 discard parameter 1 1 reserved (interpreted as 00) c) Extension indicator 0 information continues through the next octet 1 last octet d) bits J I Broadband/narrowband interworking indicator 0 0 pass on 0 1 discard message 1 0 release call 1 1 discard parameter e) bits O-K spare f) More instruction indicators The bits will be defined when required.