diff --git a/modules/tm/README b/modules/tm/README
index cbf7de9ac40..93fd564c3de 100644
--- a/modules/tm/README
+++ b/modules/tm/README
@@ -1721,7 +1721,7 @@ failure_route[1] {
    deciding if the transaction is complete. In the referred block, you can
    start a new branch which is required for failover of multiple outbound
    flows (RFC 5626). Note that the set of commands which are usable within
-   a branch_failure route is limited to a subset of the failure_route
+   a branch_failure route is limited to a subset of the failure_rotue
    commands including logging, rewriting URI and initiating new branches.
    Any other commands may generate errors or result in unpredictable
    behavior. Note that whenever failure_route is entered, uri is reset to
@@ -2638,6 +2638,9 @@ t_relay_to("0x01");
    It overrides the e2e_cancel_reason setting (module parameter) for the
    current transaction.
 
+   Note: the function has to be used when processing the INVITE (not when
+   processing the CANCEL).
+
    See also: e2e_cancel_reason.
 
    Example 1.86. t_set_no_e2e_cancel_reason usage