diff --git a/README.md b/README.md
index 9bf7be7..766649a 100644
--- a/README.md
+++ b/README.md
@@ -7,13 +7,15 @@ DSN example
 -----------
 
 ```
-PLIVO_DSN=plivo://SID:TOKEN@default?from=FROM
+PLIVO_DSN=plivo://AUTH_ID:AUTH_TOKEN@default?from=FROM&statusUrl=URL&statusUrlMethod=METHOD
 ```
 
 where:
- - `SID` is your Twillio ID
- - `TOKEN` is your Plivo token
+ - `AUTH_ID` is your Plivo auth ID
+ - `AUTH_TOKEN` is your Plivo auth token
  - `FROM` is your sender
+ - `URL` (optional) is the URL to which Plivo should send delivery updates
+ - `METHOD` (optional) is the HTTP method (GET, POST) with which Plivo should call `URL`
 
 Resources
 ---------