Dictionaries for diameter
/usr/share/wireshark/diameter
After backup original dictionaries, to use SCAPv1 of Ericsson’ proprietary diameter protocol, replace them with:

dcca.xml        ericsson.xml    nasreq.xml   tgpp.xml
dictionary.dtd  imscxdx.xml     pps.xml      vfe.xml
dictionary.xml  mobileipv4.xml  sunping.xml

Original files were

chargecontrol.xml  Ericsson.xml  imscxdx.xml     sip.xml      TGPPRx.xml
dictionary.dtd     etsie2e4.xml  mobileipv4.xml  sunping.xml  TGPPSh.xml
dictionary.xml     gqpolicy.xml  nasreq.xml      TGPPGmb.xml