Wireshark · Display Filter Reference: Signalling Connection Control Part

Field name	Description	Type	Versions
sccp.assoc.id	Association ID	Unsigned integer (32 bits)	1.0.0 to 4.4.2
sccp.assoc.msg	Message in frame	Frame number	1.0.0 to 4.4.2
sccp.called.ansi_pc	PC	Character string	1.0.0 to 4.4.2
sccp.called.chinese_pc	PC	Character string	1.0.0 to 4.4.2
sccp.called.cluster	PC Cluster	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.called.digits	Called Party Digits	Character string	1.0.0 to 4.4.2
sccp.called.digits.length	Number of Called Party Digits	Unsigned integer (8 bits)	1.8.0 to 4.4.2
sccp.called.es	Encoding Scheme	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.gti	Global Title Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.member	PC Member	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.called.nai	Nature of Address Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.network	PC Network	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.called.ni	National Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.np	Numbering Plan	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.oe	Odd/Even Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.pc	PC	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.called.pci	Point Code Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.reserved	Reserved for national use	Unsigned integer (8 bits)	1.8.3 to 4.4.2
sccp.called.ri	Routing Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.ssn	SubSystem Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.ssni	SubSystem Number Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.called.tt	Translation Type	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.ansi_pc	PC	Character string	1.0.0 to 4.4.2
sccp.calling.chinese_pc	PC	Character string	1.0.0 to 4.4.2
sccp.calling.cluster	PC Cluster	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.calling.digits	Calling Party Digits	Character string	1.0.0 to 4.4.2
sccp.calling.digits.length	Number of Calling Party Digits	Unsigned integer (8 bits)	1.8.0 to 4.4.2
sccp.calling.es	Encoding Scheme	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.gti	Global Title Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.member	PC Member	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.calling.nai	Nature of Address Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.network	PC Network	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.calling.ni	National Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.np	Numbering Plan	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.oe	Odd/Even Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.pc	PC	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.calling.pci	Point Code Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.reserved	Reserved for national use	Unsigned integer (8 bits)	1.8.3 to 4.4.2
sccp.calling.ri	Routing Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.ssn	SubSystem Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.ssni	SubSystem Number Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.calling.tt	Translation Type	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.class	Class	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.class_unexpected	Unexpected message class for this message type	Label	1.12.0 to 4.4.2
sccp.credit	Credit	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.digits	Called or Calling GT Digits	Character string	1.0.0 to 4.4.2
sccp.dlr	Destination Local Reference	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.end_optional_param	End of Optional	Label	2.0.0 to 4.4.2
sccp.error_cause	Error Cause	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.externally_reassembled	Possibly externally reassembled (remaining length > 255 bytes), enable in SCCP preferences	Label	3.6.8 to 4.4.2
sccp.gt_digits_missing	Address digits missing	Label	1.12.0 to 4.4.2
sccp.handling	Message handling	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.handling_invalid	Invalid message handling	Label	1.12.0 to 4.4.2
sccp.hops	Hop Counter	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.importance	Importance	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.international_standard_address	Address is coded to international standards. This doesn't normally happen in ANSI networks.	Label	1.12.0 to 4.4.2
sccp.isni.cluster	Network ID cluster	Unsigned integer (8 bits)	1.6.0 to 4.4.2
sccp.isni.counter	ISNI Counter	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.isni.iri	ISNI Routing Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.isni.mi	ISNI Mark for Identification Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.isni.netspec	ISNI Network Specific (Type 1)	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.isni.network	Network ID network	Unsigned integer (8 bits)	1.6.0 to 4.4.2
sccp.isni.ti	ISNI Type Indicator	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.linked_dissector	Linked dissector	Character string	2.0.0 to 4.4.2
sccp.lr	Local Reference	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.message_type	Message Type	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.more	More data	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.msg.fragment	Message fragment	Frame number	1.0.0 to 4.4.2
sccp.msg.fragment.count	Message fragment count	Unsigned integer (32 bits)	1.6.0 to 4.4.2
sccp.msg.fragment.error	Message defragmentation error	Frame number	1.0.0 to 4.4.2
sccp.msg.fragment.multiple_tails	Message has multiple tail fragments	Boolean	1.0.0 to 4.4.2
sccp.msg.fragment.overlap	Message fragment overlap	Boolean	1.0.0 to 4.4.2
sccp.msg.fragment.overlap.conflicts	Message fragment overlapping with conflicting data	Boolean	1.0.0 to 4.4.2
sccp.msg.fragment.too_long_fragment	Message fragment too long	Boolean	1.0.0 to 4.4.2
sccp.msg.fragments	Message fragments	Label	1.0.0 to 4.4.2
sccp.msg.reassembled.in	Reassembled in	Frame number	1.0.0 to 4.4.2
sccp.msg.reassembled.length	Reassembled SCCP length	Unsigned integer (32 bits)	1.4.0 to 4.4.2
sccp.optional_pointer	Pointer to Optional parameter	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.parameter_length	Variable parameter length	Unsigned integer (16 bits)	1.8.0 to 4.4.2
sccp.refusal_cause	Refusal Cause	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.release_cause	Release Cause	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.reset_cause	Reset Cause	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.return_cause	Return Cause	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.rsn	Receive Sequence Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.segmentation.class	Segmentation: Class	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.segmentation.first	Segmentation: First	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.segmentation.remaining	Segmentation: Remaining	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.segmentation.slr	Segmentation: Source Local Reference	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.segmented_data	Segmented Data	Byte sequence	2.0.0 to 4.4.2
sccp.sequencing_segmenting.more	Sequencing Segmenting: More	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.sequencing_segmenting.rsn	Sequencing Segmenting: Receive Sequence Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.sequencing_segmenting.ssn	Sequencing Segmenting: Send Sequence Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.slr	Source Local Reference	Unsigned integer (24 bits)	1.0.0 to 4.4.2
sccp.ssn	Called or Calling SubSystem Number	Unsigned integer (8 bits)	1.0.0 to 4.4.2
sccp.ssn.is_zero	Message is routed on SSN, but SSN is zero (unspecified)	Label	1.12.0 to 4.4.2
sccp.ssn.not_present	Message is routed on SSN, but SSN is not present	Label	1.12.0 to 4.4.2
sccp.unknown_message	Unknown message	Byte sequence	2.0.0 to 4.4.2
sccp.unknown_parameter	Unknown parameter	Byte sequence	2.0.0 to 4.4.2
sccp.variable_pointer1	Pointer to first Mandatory Variable parameter	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.variable_pointer2	Pointer to second Mandatory Variable parameter	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.variable_pointer3	Pointer to third Mandatory Variable parameter	Unsigned integer (16 bits)	1.0.0 to 4.4.2
sccp.wrong_length	Wrong length indicated.	Label	1.12.0 to 4.4.2