Ethereal-dev: [Ethereal-dev] T.38 nonexisting HDLC commands

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From: "Thomas Sillaber" <Thomas.Sillaber@xxxxxx>
Date: Sat, 28 Jan 2006 13:04:52 +0100 (MET)
Hello,

when decoding T.38 via SIP Sessions there are many unknown HDLC Commands
like Ukn (0x7E). Are this unknown commands non standard commands or are this
commands defined in ITU T.30. Where to get informations to add this commands
to the T.38 dissector?

TIA

Thomas



|106,679  |                   |         Ukn (0x7E)                   
|t38:v17-14400:HDLC:Ukn (0x7E)
|         |                   |(6032)   <------------------  (10412)  |
|106,719  |                   |         Ukn (0x5E)                   
|t38:v17-14400:HDLC:Ukn (0x5E)
|         |                   |(6032)   <------------------  (10412)  |
|106,759  |                   |         Ukn (0x7F)                   
|t38:v17-14400:HDLC:Ukn (0x7F)
|         |                   |(6032)   <------------------  (10412)  |
|106,799  |                   |         Ukn (0x0B)                   
|t38:v17-14400:HDLC:Ukn (0x0B)
|         |                   |(6032)   <------------------  (10412)  |
|106,839  |                   |         CSI       |                  
|t38:v17-14400:HDLC:Called Subscriber Identification
|         |                   |(6032)   <------------------  (10412)  |
|106,880  |                   |         SID       |                  
|t38:v17-14400:HDLC:Sender Identification
|         |                   |(6032)   <------------------  (10412)  |
|106,920  |                   |         Ukn (0x4A)                   
|t38:v17-14400:HDLC:Ukn (0x4A)
|         |                   |(6032)   <------------------  (10412)  |
|106,959  |                   |         Ukn (0x7F)                   
|t38:v17-14400:HDLC:Ukn (0x7F)
|         |                   |(6032)   <------------------  (10412)  |
|107,000  |                   |         Ukn (0x7F)                   
|t38:v17-14400:HDLC:Ukn (0x7F)
|         |                   |(6032)   <------------------  (10412)  |
|107,059  |                   |         FCD Frm num: 11              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,099  |                   |         EOP2      |                  
|t38:v17-14400:HDLC:Procedure Interrupt-End Of Procedure
|         |                   |(6032)   <------------------  (10412)  |
|107,139  |                   |         NSS       |                  
|t38:v17-14400:HDLC:Non-Standard facilities Set-up
|         |                   |(6032)   <------------------  (10412)  |
|107,179  |                   |         Ukn (0x7F)                   
|t38:v17-14400:HDLC:Ukn (0x7F)
|         |                   |(6032)   <------------------  (10412)  |
|107,219  |                   |         Ukn (0x1E)                   
|t38:v17-14400:HDLC:Ukn (0x1E)
|         |                   |(6032)   <------------------  (10412)  |
|107,259  |                   |         Ukn (0x52)                   
|t38:v17-14400:HDLC:Ukn (0x52)
|         |                   |(6032)   <------------------  (10412)  |
|107,300  |                   |         RTP       |                  
|t38:v17-14400:HDLC:Retrain Positive
|         |                   |(6032)   <------------------  (10412)  |
|107,339  |                   |         EOM       |                  
|t38:v17-14400:HDLC:End Of Message
|         |                   |(6032)   <------------------  (10412)  |
|107,379  |                   |         SUB       |                  
|t38:v17-14400:HDLC:Subaddress
|         |                   |(6032)   <------------------  (10412)  |
|107,420  |                   |         Ukn (0x52)                   
|t38:v17-14400:HDLC:Ukn (0x52)
|         |                   |(6032)   <------------------  (10412)  |
|107,459  |                   |         Ukn (0x68)                   
|t38:v17-14400:HDLC:Ukn (0x68)
|         |                   |(6032)   <------------------  (10412)  |
|107,500  |                   |         Ukn (0x4F)                   
|t38:v17-14400:HDLC:Ukn (0x4F)
|         |                   |(6032)   <------------------  (10412)  |
|107,540  |                   |         FTT       |                  
|t38:v17-14400:HDLC:Failure To Train
|         |                   |(6032)   <------------------  (10412)  |
|107,580  |                   |         Ukn (0x1D)                   
|t38:v17-14400:HDLC:Ukn (0x1D)
|         |                   |(6032)   <------------------  (10412)  |
|107,620  |                   |         CTR       |                  
|t38:v17-14400:HDLC:Response for Continue To Correct
|         |                   |(6032)   <------------------  (10412)  |
|107,660  |                   |         Ukn (0x05)                   
|t38:v17-14400:HDLC:Ukn (0x05)
|         |                   |(6032)   <------------------  (10412)  |
|107,699  |                   |         Ukn (0x2F)                   
|t38:v17-14400:HDLC:Ukn (0x2F)
|         |                   |(6032)   <------------------  (10412)  |
|107,740  |                   |         FTT       |                  
|t38:v17-14400:HDLC:Failure To Train
|         |                   |(6032)   <------------------  (10412)  |
|107,779  |                   |         FCD Frm num: 29              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,820  |                   |         FCD Frm num: 30              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,859  |                   |         FCD Frm num: 31              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,900  |                   |         FCD Frm num: 32              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,940  |                   |         FCD Frm num: 33              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|107,980  |                   |         FCD Frm num: 34              
|t38:v17-14400:HDLC:Facsimile coded data
|         |                   |(6032)   <------------------  (10412)  |
|108,080  |                   |         Ukn (0x4C)                   
|t38:v17-14400:HDLC:Ukn (0x4C)
|         |                   |(6032)   <------------------  (10412)  |
|108,120  |                   |         Ukn (0x2F)                   
|t38:v17-14400:HDLC:Ukn (0x2F)
|         |                   |(6032)   <------------------  (10412)  |
|108,160  |                   |         Ukn (0x55)                   
|t38:v17-14400:HDLC:Ukn (0x55)
|         |                   |(6032)   <------------------  (10412)  |
|108,200  |                   |         Ukn (0x6B)                   
|t38:v17-14400:HDLC:Ukn (0x6B)
|         |                   |(6032)   <------------------  (10412)  |
|108,240  |                   |         IRA       |                  
|t38:v17-14400:HDLC:Internet Routing Address
|         |                   |(6032)   <------------------  (10412)  |
|108,279  |                   |         NSS       |                  
|t38:v17-14400:HDLC:Non-Standard facilities Set-up
|         |                   |(6032)   <------------------  (10412)  |
|108,320  |                   |         Ukn (0x6B)                   
|t38:v17-14400:HDLC:Ukn (0x6B)
|         |                   |(6032)   <------------------  (10412)  |
|108,359  |                   |         Ukn (0x06)                   
|t38:v17-14400:HDLC:Ukn (0x06)
----snip


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