diff --git a/voxtelesys_integration/doctype/voxtelesys_settings/voxtelesys_settings.json b/voxtelesys_integration/doctype/voxtelesys_settings/voxtelesys_settings.json
index 692c0fa..632fc79 100644
--- a/voxtelesys_integration/doctype/voxtelesys_settings/voxtelesys_settings.json
+++ b/voxtelesys_integration/doctype/voxtelesys_settings/voxtelesys_settings.json
@@ -3,34 +3,59 @@
   "creation": "2025-01-01 00:00:00.000000",
   "doctype": "DocType",
   "engine": "InnoDB",
-  "field_order": ["enabled","api_token","column_break_1","outbound_trunk_group","caller_id","section_break_webhook","webhook_secret","webhook_url_display","section_break_voxml","voxml_base_url","recording_enabled","column_break_2","missed_call_create_issue","default_issue_queue","section_break_agent","agent_routing_mode"],
+  "field_order": [
+    "enabled",
+    "api_token",
+    "column_break_1",
+    "outbound_trunk_group",
+    "caller_id",
+    "section_break_webhook",
+    "webhook_secret",
+    "webhook_url_display",
+    "sms_webhook_url_display",
+    "section_break_voxml",
+    "voxml_base_url",
+    "recording_enabled",
+    "column_break_2",
+    "missed_call_create_issue",
+    "default_issue_queue",
+    "section_break_agent",
+    "agent_routing_mode",
+    "section_break_sms",
+    "sms_enabled",
+    "sms_auto_attach_to_ticket"
+  ],
   "fields": [
-    {"fieldname":"enabled","fieldtype":"Check","label":"Enabled","default":"0"},
-    {"fieldname":"api_token","fieldtype":"Password","label":"Voxtelesys API Token","description":"Bearer token from the Voxtelesys developer portal (Voice API)","reqd":1},
-    {"fieldname":"column_break_1","fieldtype":"Column Break"},
-    {"fieldname":"outbound_trunk_group","fieldtype":"Data","label":"Outbound Trunk Group","description":"Trunk group name as configured in Voxtelesys portal"},
-    {"fieldname":"caller_id","fieldtype":"Data","label":"Default Caller ID (E.164)","description":"e.g. +12025551234"},
-    {"fieldname":"section_break_webhook","fieldtype":"Section Break","label":"Webhook Configuration"},
-    {"fieldname":"webhook_secret","fieldtype":"Password","label":"Webhook Signing Secret","description":"Optional — verify webhook POSTs originate from Voxtelesys"},
-    {"fieldname":"webhook_url_display","fieldtype":"Data","label":"Your Inbound Webhook URL","read_only":1,"description":"Set this URL in your Voxtelesys Voice API Profile"},
-    {"fieldname":"section_break_voxml","fieldtype":"Section Break","label":"VoxXML / Voice Behaviour"},
-    {"fieldname":"voxml_base_url","fieldtype":"Data","label":"Public Base URL","description":"Publicly accessible root of this ERPNext site (e.g. https://erp.broadcastmgmt.cloud)"},
-    {"fieldname":"recording_enabled","fieldtype":"Check","label":"Enable Call Recording","default":"0"},
-    {"fieldname":"column_break_2","fieldtype":"Column Break"},
-    {"fieldname":"missed_call_create_issue","fieldtype":"Check","label":"Auto-create Helpdesk Issue on Missed Call","default":"1"},
-    {"fieldname":"default_issue_queue","fieldtype":"Link","label":"Default Issue Queue","options":"HD Ticket Priority","description":"Helpdesk queue for auto-created missed-call issues"},
-    {"fieldname":"section_break_agent","fieldtype":"Section Break","label":"Agent Routing"},
-    {"fieldname":"agent_routing_mode","fieldtype":"Select","label":"Inbound Call Routing","options":"Round Robin\nAvailability-Based\nDirect (no routing)","default":"Round Robin"}
+    {"fieldname": "enabled", "fieldtype": "Check", "label": "Enabled", "default": "0"},
+    {"fieldname": "api_token", "fieldtype": "Password", "label": "Voxtelesys API Token", "description": "Bearer token from the Voxtelesys developer portal. Used for both Voice and SMS APIs.", "reqd": 1},
+    {"fieldname": "column_break_1", "fieldtype": "Column Break"},
+    {"fieldname": "outbound_trunk_group", "fieldtype": "Data", "label": "Outbound Trunk Group", "description": "Trunk group name as configured in Voxtelesys portal"},
+    {"fieldname": "caller_id", "fieldtype": "Data", "label": "Default Caller ID (E.164)", "description": "e.g. +12025551234 — used for outbound voice and as the default SMS sender"},
+    {"fieldname": "section_break_webhook", "fieldtype": "Section Break", "label": "Webhook Configuration"},
+    {"fieldname": "webhook_secret", "fieldtype": "Password", "label": "Webhook Signing Secret", "description": "Optional — HMAC-SHA256 secret used to verify webhook POSTs originate from Voxtelesys"},
+    {"fieldname": "webhook_url_display", "fieldtype": "Data", "label": "Voice Webhook URL", "read_only": 1, "description": "Set this URL as the Answer URL on your Voxtelesys Voice API Profile"},
+    {"fieldname": "sms_webhook_url_display", "fieldtype": "Data", "label": "SMS Webhook URL", "read_only": 1, "description": "Set this URL as the Inbound Webhook on your Voxtelesys SMS Profile"},
+    {"fieldname": "section_break_voxml", "fieldtype": "Section Break", "label": "VoxXML / Voice Behaviour"},
+    {"fieldname": "voxml_base_url", "fieldtype": "Data", "label": "Public Base URL", "description": "Publicly accessible root of this ERPNext site (e.g. https://erp.broadcastmgmt.cloud)"},
+    {"fieldname": "recording_enabled", "fieldtype": "Check", "label": "Enable Call Recording", "default": "0"},
+    {"fieldname": "column_break_2", "fieldtype": "Column Break"},
+    {"fieldname": "missed_call_create_issue", "fieldtype": "Check", "label": "Auto-create Helpdesk Ticket on Missed Call", "default": "1"},
+    {"fieldname": "default_issue_queue", "fieldtype": "Link", "label": "Default Ticket Priority", "options": "HD Ticket Priority", "description": "Priority applied to auto-created missed-call tickets"},
+    {"fieldname": "section_break_agent", "fieldtype": "Section Break", "label": "Agent Routing"},
+    {"fieldname": "agent_routing_mode", "fieldtype": "Select", "label": "Inbound Call Routing", "options": "Round Robin\nAvailability-Based\nDirect (no routing)", "default": "Round Robin", "description": "Round Robin cycles through users with a custom_voxtelesys_number set. Direct skips routing and plays the unavailable message."},
+    {"fieldname": "section_break_sms", "fieldtype": "Section Break", "label": "SMS"},
+    {"fieldname": "sms_enabled", "fieldtype": "Check", "label": "Enable SMS", "default": "1", "description": "Enables the SMS Send button on HD Ticket and the inbound SMS webhook handler"},
+    {"fieldname": "sms_auto_attach_to_ticket", "fieldtype": "Check", "label": "Auto-attach Inbound SMS to Open Ticket", "default": "1", "description": "When an SMS arrives from a known Contact with an open HD Ticket, attach it as a Communication on that ticket"}
   ],
   "issingle": 1,
   "links": [],
-  "modified": "2025-01-01 00:00:00.000000",
+  "modified": "2026-05-12 00:00:00.000000",
   "modified_by": "Administrator",
   "module": "Voxtelesys Integration",
   "name": "Voxtelesys Settings",
   "owner": "Administrator",
-  "permissions": [{"create":1,"delete":1,"email":1,"export":1,"print":1,"read":1,"report":1,"role":"System Manager","share":1,"write":1}],
+  "permissions": [{"create": 1, "delete": 1, "email": 1, "export": 1, "print": 1, "read": 1, "report": 1, "role": "System Manager", "share": 1, "write": 1}],
   "sort_field": "modified",
   "sort_order": "DESC",
   "track_changes": 1
-}
\ No newline at end of file
+}