<I have a simple 
change request for this option. 
<Would it be 
possible to have the "Display raw text for SIP messages" 
option, 
<under the 
Preferences menu, replace or override the normal dissector, 
<rather than 
being invoked after it has finished? If the main dissector crashes 
<or fails to 
finish the dissection (resulting in a short frame messge), 
<the raw text 
does not get displayed.
 
I'm using both of 
them at same time since I often want to look at the raw 
SIP-message, but
I also want to do 
easy filtering with "Analyse/Prepare a filter" and also want the 
SDP
dissector to startup RTP 
conversations and similar.
 
It might be good to have an 
option to disable the "tree dissection" for those that want 
that
and just have the 
"raw text format", similar to how there is two checkboxes in Megaco 
dissector.
 
Another alternative 
could be to use a enum preference that
can used to select between 
-Tree Dissection Only
-Tree Dissection+Raw
-Raw+Tree Dissection
-Raw Only.
 
 
The SIP-dissector in 
Ethereal 0.10.4 shouldn't crash, I think.
There was a problem 
in Ethereal 0.10.3.
If you have any 
remaining crash problems with 0.10.4, please send a 
bug-report.