0x27E3 Release Cause Code

The following release cause codes are used for H.323 calls.
Used in:
0x0033 NPDI Universal ICB in:
Channel Released message
Channel Released with Data message

ITU-T standard defines a set of call control, channel setup, and codec specifications for transmitting real-time voice and video over networks that do not offer guaranteed service or quality of service.

Network Protocol Data Intelligence. Also called “Interworking,” it is a software product that operates within Excel’s Call Control (Layer 4) and Services (Layer 5) call processing layers. NPDI is meant to enhance Excel’s call processing product offering by allowing call processing layers (specifically Layers 4 and 5) to perform advanced analysis, generation, and conversion of Network Signaling (NS) Layer 3 information.

See Information Control Block.

Most Significant Bit

Least Significant Bit

An H.323 entity on the network that provides address translation and controls access to the network for H.323 terminals and other end points. The gatekeeper may also provide other services to the endpoints such as bandwidth management and locating gateways.

An H.323 terminal or gateway, or MCU. An endpoint can call and be called. It generates and/or terminates the information stream.

A device that translates calls between an IP network and another network, typically the PSTN.

Byte	Description
0, 1	Tag Release Cause Code (0x27E3)
2, 3	Length 0x02
4,5	Value[0] MSB 0x01 Release Reason LSB 0x01 Called Party Not Registered 0x02 Invalid Permission Chosen 0x03 Request Denied 0x04 Undefined Reason 0x05 Caller Not Registered 0x06 Route Call to Gatekeeper 0x07 Invalid Endpoint Idenfier Chosen 0x08 Resource Unavailable Chosen 0x09 Security Denial Chosen 0x0A Control Not Supported Chosen 0x0B Complete Address Chosen MSB 0x02 Release Reason Remote End LSB 0x01 No Bandwidth Chosen 0x02 Gatekeeper 0x03 Unreachable Destination Rejection Chosen 0x04 Destination Rejection Chosen 0x05 Release Complete Invalid Revision Chosen 0x06 No Permission Chosen 0x07 Unreachable Gatekeeper Chosen 0x08 Gateway Resources Chosen 0x09 Bad Format Address Chosen 0x0A Adaptive Busy Chosen 0x0B In Conf Chosen 0x0C Release Complete Undefined Reason Chosen 0x0D Facility Call Deflection 0x0E Security Denied Chosen 0x0F Release Complete Called Party Not Registered Chosen 0x10 Release Complete Caller Not Registered Chosen MSB 0x03 Release Reason Others LSB 0x01 Outseize Error 0x02 Protocol Error 0x03 Socket Open Fail 0x04 Gatekeeper not Configured 0x05 ARQ Fail 0x06 Purge 0x07 Local End Release MSB 0x04 Q931 Cause Location USER LSB Q931 Cause code MSB 0x05 Q931 Cause Location Private Network serving Local user LSB Q931 Cause code MSB 0x05 Q931 Cause Location Public Network serving Local user LSB Q931 Cause code MSB 0x07 Q931 Cause Location Transit Network LSB Q931 Cause code