diff --git a/README.md b/README.md
index 13ad088..e9e8cb9 100644
--- a/README.md
+++ b/README.md
@@ -8,14 +8,15 @@
 # Required API endpoint/authentication variables
 SONAR_URL=https://instance.sonar.software/api/graphql
 SONAR_TOKEN=
-RC_APP_KEY=
-RC_APP_SECRET=
-RC_LOGIN_USERNAME=
-RC_LOGIN_EXT=
-RC_LOGIN_PASSWORD=
+RINGCENTRAL_CLIENT_ID=
+RINGCENTRAL_CLIENT_SECRET=
+RINGCENTRAL_USERNAME=
+RINGCENTRAL_EXTENSION=
+RINGCENTRAL_PASSWORD=
 
-# Set to any value to enable use of RingCentral's sandbox API
-RC_SANDBOX=
+# Set to 'sandbox' to use RingCentral's sandbox API
+# Any other value will result in using RingCentral's production API
+RINGCENTRAL_SERVER=production
 
 # The database to use
 # valid options: pg, sqlite
diff --git a/src/index.ts b/src/index.ts
index daab062..b34dd6c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -9,11 +9,11 @@ function checkEnv() {
   [
     "SONAR_URL",
     "SONAR_TOKEN",
-    "RC_APP_KEY",
-    "RC_APP_SECRET",
-    "RC_LOGIN_USERNAME",
-    "RC_LOGIN_EXT",
-    "RC_LOGIN_PASSWORD",
+    "RINGCENTRAL_CLIENT_ID",
+    "RINGCENTRAL_CLIENT_SECRET",
+    "RINGCENTRAL_USERNAME",
+    "RINGCENTRAL_EXTENSION",
+    "RINGCENTRAL_PASSWORD",
     "EXTENSION_TICKET_GROUPS",
   ].forEach((env) => {
     if (process.env[env] === undefined) {
@@ -65,16 +65,19 @@ async function initSonar() {
 
 async function initRingCentralSDK() {
   const sdk = new SDK({
-    server: SDK.server[process.env.RC_SANDBOX ? "sandbox" : "production"],
-    clientId: process.env.RC_APP_KEY,
-    clientSecret: process.env.RC_APP_SECRET,
+    server:
+      SDK.server[
+        process.env.RINGCENTRAL_SERVER === "sandbox" ? "sandbox" : "production"
+      ],
+    clientId: process.env.RINGCENTRAL_CLIENT_ID,
+    clientSecret: process.env.RINGCENTRAL_CLIENT_SECRET,
   });
 
   const login = () =>
     sdk.login({
-      username: process.env.RC_LOGIN_USERNAME,
-      extension: process.env.RC_LOGIN_EXT,
-      password: process.env.RC_LOGIN_PASSWORD,
+      username: process.env.RINGCENTRAL_USERNAME,
+      extension: process.env.RINGCENTRAL_EXTENSION,
+      password: process.env.RINGCENTRAL_PASSWORD,
     });
 
   if (DEBUG) {