diff --git a/src/modules/acc/README b/src/modules/acc/README
index 7c31188ac77..1ea4e6f98d0 100644
--- a/src/modules/acc/README
+++ b/src/modules/acc/README
@@ -529,6 +529,11 @@ Note
    information given will not be stored in the CDR as they cannot be
    accessed by the end of the call when the CDR is logged.
 
+   The dialog module needs to be engaged on the dialogs that should be
+   accounted, that they will be tracked by the server. This is usally done
+   by calling the function dlg_manage() or setting the dlg_flag. Refer to
+   the documentation of the dialog module for more information.
+
    Sometimes, dialogs expire because the UA has a problem and a final
    message is never transmitted. You can toggle on/off the generation of
    CDR-based logging in such cases with only the dlg_vars showing by using
@@ -1129,7 +1134,7 @@ modparam("acc", "cdr_start_on_confirmed", 1)
 6.34. cdr_facility (integer)
 
    Log facility to which CDR messages are issued to syslog. This allows to
-   easily seperate CDR-specific logging from the other log messages.
+   easily separate CDR-specific logging from the other log messages.
 
    Default value is LOG_DAEMON.
 
diff --git a/src/modules/posops/README b/src/modules/posops/README
index 035f807acb8..e7583adc588 100644
--- a/src/modules/posops/README
+++ b/src/modules/posops/README
@@ -214,6 +214,9 @@ pos_insert("100", "10");
 
    Set the char at position index to first character in val.
 
+   Important: it changes the character directly in the SIP message buffer,
+   the update being immediately visible.
+
    The idx can be an integer value or a variable holding an integer. If
    the value is negative, the position is counted from the end of the
    buffer.
diff --git a/src/modules/ratelimit/README b/src/modules/ratelimit/README
index ecd6fce79a1..4862e717f73 100644
--- a/src/modules/ratelimit/README
+++ b/src/modules/ratelimit/README
@@ -514,5 +514,5 @@ modparam("ratelimit", "pipe", "4:NETWORK:10000")
 
    The pipes and queues are stored as static vectors, so no more than
    MAX_PIPES/MAX_QUEUES can be added without recompilation.
-     * MAX_PIPES - 16
-     * MAX_QUEUES - 10
+     * MAX_PIPES - 32
+     * MAX_QUEUES - 32
diff --git a/src/modules/usrloc/README b/src/modules/usrloc/README
index d180968e95d..a15bc8c62de 100644
--- a/src/modules/usrloc/README
+++ b/src/modules/usrloc/README
@@ -1113,10 +1113,15 @@ modparam("usrloc", "version_table", 0)
    Note: the internal keepalive is for the moment implemented only for
    contact records stored in memory.
 
-   Note: it is recommeder to set 'timer_procs' parameter in order to have
+   Note: it is recommended to set 'timer_procs' parameter in order to have
    dedicated timer processes for usrloc module and off-load the keepalive
    sending process from the core timers.
 
+   Note: Keepalives will be sent to the IP and port using the transport
+   defined in the “received” column. If not set, then keepalives will
+   be sent to the AOR using UDP as a default transport. If available, the
+   TCP connection will be re-used for WS, TCP and TLS.
+
    Default value is “0 (keepalive disabled)”.
 
    Example 1.50. ka_mode parameter usage