doc: Add new error type to ussd Initiate() method

diff --git a/doc/supplementaryservices-api.txt b/doc/supplementaryservices-api.txt
index 687a14e..8e8f2b6 100644 (file)
--- a/doc/supplementaryservices-api.txt
+++ b/doc/supplementaryservices-api.txt
@@ -34,6 +34,7 @@ Methods               string, variant Initiate(string command)
                                         [service].Error.Timedout
                                         [service].Error.AccessDenied
                                         [service].Error.Failed
+                                        [service].Error.NotRecognized
 
                string Respond(string reply)