If I enable dialog module Kamailio will fail to start with following error: ERROR: dialog [dialog.c:498]: mod_init(): no dlg flag set!! In the documentation this parameter is set to 4 as an example: modparam("dialog", "dlg_flag", 4) But no comments made as to why number 4 is used, which numbers are possible to use and most importantly - why such default value is chosen? In any case - module should use default which does not break server's configuration. --- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/372