diff --git a/package-lock.json b/package-lock.json
index 71d6ab3..b1ef6fd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@jambonz/schema",
-  "version": "0.3.9",
+  "version": "0.3.10",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@jambonz/schema",
-      "version": "0.3.9",
+      "version": "0.3.10",
       "license": "MIT",
       "dependencies": {
         "ajv": "^8.17.1",
diff --git a/package.json b/package.json
index d24f6ca..bfaa4d9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jambonz/schema",
-  "version": "0.3.9",
+  "version": "0.3.10",
   "description": "JSON Schema definitions and validation for jambonz verb applications",
   "main": "index.js",
   "scripts": {
diff --git a/verbs/dial.schema.json b/verbs/dial.schema.json
index 8d03edc..bfccd99 100644
--- a/verbs/dial.schema.json
+++ b/verbs/dial.schema.json
@@ -163,6 +163,11 @@
     "forwardPAI": {
       "type": "boolean",
       "description": "If true, forward the P-Asserted-Identity header from the inbound call to the outbound call."
+    },
+    "srtpEncryption": {
+      "type": "string",
+      "enum": ["sdes", "dtls"],
+      "description": "SRTP encryption mode to use for the outbound call."
     }
   },
   "required": [