ISDN User Part

GPTKB entity

Statements (42)
Predicate Object
gptkbp:instanceOf gptkb:network_protocol
gptkbp:abbreviation gptkb:ISUP
gptkbp:category Telephony signaling protocols
gptkbp:compatibleWith packet-switched calls
gptkbp:definedIn ITU-T Q.761
ITU-T Q.762
ITU-T Q.763
ITU-T Q.764
ITU-T Q.765
https://www.w3.org/2000/01/rdf-schema#label ISDN User Part
gptkbp:layer Signaling layer
gptkbp:messageType Address Complete Message
Answer Message
Continuity Check Indication
Continuity Check Request
Initial Address Message
Release Complete Message
Release Message
Resume Message
Subsequent Address Message
Suspend Message
User-to-User Information Message
gptkbp:OSIModelLayer gptkb:Layer_3
gptkbp:protocolFamily gptkb:SS7
gptkbp:purpose call management
call setup
call release
gptkbp:relatedTo gptkb:ISDN
telephone network
gptkbp:replacedBy SIP (in some networks)
gptkbp:standardizedBy gptkb:ITU-T
1980s
gptkbp:supports circuit-switched calls
gptkbp:usedBy mobile networks
VoIP gateways
telephone exchanges
gptkbp:usedFor PSTN call control
gptkbp:usedIn gptkb:Signaling_System_No._7
gptkbp:bfsParent gptkb:ISUP
gptkb:Message_Transfer_Part
gptkb:Signaling_System_No._7
gptkbp:bfsLayer 7