With Synopsys H.323 Test Tool, you can proactively eliminate robustness flaws from your critical VoIP devices and infrastructure. This saves development and maintenance costs, produces more stable systems, and enhances your product and corporate image. Synopsys H.323 Test Suite is essential for anyone who develops VoIP implementations or depends on the robust functioning of VoIP services. H.323 is an umbrella recommendation from the ITU-T, that defines the protocols to provide audio-visual communication sessions on any packet network. It is a part of the H.32x series of protocols which also address communications over ISDN, PSTN or SS7. H.323 is commonly used in Voice over IP (VoIP, Internet Telephony, or IP Telephony) and IP-based videoconferencing.
Call signalling protocols and media stream packetization
Control protocol for multimedia communication
Packet-based multimedia communications systems
Cause and location in the Digital Subscriber Signalling System No. 1
ISDN user-network interface layer 3 basic call control
ISO Transport Service on top of the TCP Version 3
Slow connect / Slow Start procedure
Fast connect / Fast Start procedure
H.245 Tunnelling
Gatekeeper registration and calls with a gatekeeper
Call Proceeding
Alerting
Connect
Release Complete
Facility
Gatekeeper Confirm
Registration Confirm
Admission Confirm
Disengage Confirm
Gatekeeper Reject
Registration Reject
Admission Reject
Disengage Reject
TerminalCapabilitySet
TerminalCapabilitySetAck
TerminalCapabilitySetReject
MasterSlaveDetermination
MasterSlaveDeterminationAck
MasterSlaveDeterminationReject
OpenLogicalChannel
OpenLogicalChannelAck
OpenLogicalChannelReject
CloseLogicalChannel
CloseLogicalChannelAck
EndSessionCommand
RequestChannelClose