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With Ethereal V0.10.6 and other recent versions,
when I load an H225 & RTP trace, parts of the decode to not seem to be
understood. For instance whenever an H.225 Call Setup packet occurs, the summary
window shows:-
"H.225.0 CS: setup OpenLogicalChannel
[UNKNOWN PER: Unrecognized H.450.x operation][Unreassembled
Packet]"
In the Protocol Tree window the unreassembled
packet is to do with H.4501:-
"
h4501SupplementaryService
Item
0
H.450.1
SupplementaryService
NetworkFacilityExtension
EntityType
EntityType: endpoint
(0)
EntityType
EntityType: anyEntity
(1)
InterpretationApdu
InterpretationApdu: discardAnyUnrecognizedInvokePdu
(0)
ServiceApdus
ServiceApdus: rosApdus
(0)
rosApdus
Item
0
ROS
ROS: invoke
(1)
Invoke
invokeId:
1
Opcode
opcode: global
(1)
global:
1.2.826.0.1.1907195.1
something unknown here [Unrecognized H.450.x operation]
[Unreassembled
Packet: H4501]"
The same problem exists with all other H.225
packets (e.g. Call proceeding, Alerting, Connect & Release Complete etc).
Please can anyone help with this?
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