Hi, Is there a way to contribute changes to the Kamailio Developer's Guide? I have been working with PVs and while the structures are listed, the required functions and pv helper functions are not, so it's not clear how to put them together. I had to look through the code to find examples of parsing the PVs and names etc. I found the htable module had a good example where a name is parsed that may contain further PVs that need resolving to a string. Another useful addition would be a list of the fixup functions that are available for exported module functions. (fixup_pvar_pvar, fixup_spve_null, fixup_str_str etc.) Under what circumstances would I use these different functions? Hugh -- Hugh Waite Principal Design Engineer Crocodile RCS Ltd.