ISDN Layer 3 decode

["Keith French" <keithfrench () btconnect com>]

I have an ISDN (E1) analyser that cannot decode Q.Sig’s ASN1 notation holding information about call transfers etc. I 
know from another analyser that can export its D channel decode in Wireshark format, that Wireshark has an excellent 
decode for this.

Is there any way I can take the raw hex at layers 2 & 3 (LAPD layer 2) for each message and via something like 
text2pcap get Wireshark to decode this for me?

I have tried a syntax like:-

text2pcap input.txt output.pcap

but it just reports that it has read 0 packets.

The input file just contains the hex from one message, I have tried combining the layer 2 & 3 hex and just using the L3 
hex.

Keith French.

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