diff --git a/voxtelesys_integration/api.py b/voxtelesys_integration/api.py
index 7368fb8..5083b0a 100644
--- a/voxtelesys_integration/api.py
+++ b/voxtelesys_integration/api.py
@@ -1,37 +1,35 @@
 """
-voxtelesys_integration.api
-==========================
+voxtelesys_integration.api  (LEGACY 3CX bridge path)
+====================================================
 
-Single whitelisted endpoint called by 3CX Call Flow Designer (CF_URLFetch)
-when an inbound call arrives.
+This module implements the v1.x "3CX webhook" architecture where 3CX is the
+PBX call broker, the Voxtelesys SIP trunk is just the carrier, and ERPNext
+is a passive ticket creator notified by 3CX's CF_URLFetch block.
 
-3CX sends a POST with these variables set in the Call Flow:
-    caller_id   - the inbound caller's number (e.g. +12025551234)
-    called_did  - the DID that was dialled (optional, for routing info)
-    call_id     - 3CX internal call ID (optional, for deduplication)
+For the v2.x direct-API architecture (ERPNext talks to Voxtelesys APIs and
+brokers calls itself), see api/voxtelesys.py and api/sms.py.
 
-The endpoint creates an HD Ticket in Frappe Helpdesk and returns JSON.
-
-Endpoint URL to put in 3CX:
-    https://erp.broadcastmgmt.cloud/api/method/voxtelesys_integration.api.inbound_call
-
-No authentication required (allow_guest=True) — protect via 3CX secret token
-in the request if desired (see WEBHOOK_SECRET below).
+Both paths can coexist. Use this one if your existing 3CX deployment is
+already routing calls and you only want auto-ticketing in ERPNext; use the
+direct path if you want click-to-call, agent routing, SMS, and call
+recording driven from ERPNext.
 """
 
 import frappe
 from frappe import _
 
-# Optional: set this in Site Config as voxtelesys_webhook_secret = "yourtoken"
-# 3CX should pass it as ?secret=yourtoken in the URL.
-# Leave blank to accept all requests (fine if ERPNext is behind a firewall).
-
 
 @frappe.whitelist(allow_guest=True)
 def inbound_call(caller_id: str = "", called_did: str = "", call_id: str = "", **kwargs):
-    """
-    Called by 3CX CF_URLFetch on every inbound call.
-    Creates an HD Ticket and returns the ticket name.
+    """3CX CF_URLFetch entrypoint — creates an HD Ticket on every inbound call.
+
+    Endpoint URL:
+        https://<site>/api/method/voxtelesys_integration.api.inbound_call
+
+    3CX passes:
+        caller_id  — inbound caller's number (e.g. +12025551234)
+        called_did — DID that was dialled (optional, for routing info)
+        call_id    — 3CX internal call ID (optional, for deduplication)
     """
     _validate_secret()
 
@@ -40,7 +38,6 @@ def inbound_call(caller_id: str = "", called_did: str = "", call_id: str = "", *
         frappe.local.response["http_status_code"] = 400
         return {"ok": False, "error": "caller_id is required"}
 
-    # Deduplication: if a ticket was already created for this call_id, return it
     if call_id:
         existing = frappe.db.get_value(
             "HD Ticket",
@@ -50,7 +47,6 @@ def inbound_call(caller_id: str = "", called_did: str = "", call_id: str = "", *
         if existing:
             return {"ok": True, "ticket": existing, "duplicate": True}
 
-    # Look up a Contact matching the caller number so we can pre-fill the ticket
     contact_name, contact_email = _find_contact(caller_id)
 
     try:
@@ -62,13 +58,11 @@ def inbound_call(caller_id: str = "", called_did: str = "", call_id: str = "", *
             + (f"<br>3CX Call ID: {frappe.utils.escape_html(call_id)}" if call_id else "")
         )
 
-        # Pre-fill contact/email if we found a match
         if contact_email:
             ticket.raised_by = contact_email
         if contact_name:
             ticket.contact = contact_name
 
-        # Store the 3CX call ID for deduplication (requires custom field — see README)
         if call_id and frappe.db.has_column("HD Ticket", "custom_3cx_call_id"):
             ticket.custom_3cx_call_id = call_id
 
@@ -76,34 +70,29 @@ def inbound_call(caller_id: str = "", called_did: str = "", call_id: str = "", *
         frappe.db.commit()
 
         frappe.logger().info(
-            f"[Voxtelesys] Created HD Ticket {ticket.name} for inbound call from {caller_id}"
+            f"[Voxtelesys/3CX] Created HD Ticket {ticket.name} for inbound call from {caller_id}"
         )
         return {"ok": True, "ticket": ticket.name}
 
     except Exception:
-        frappe.log_error(frappe.get_traceback(), "Voxtelesys: Failed to create HD Ticket")
+        frappe.log_error(frappe.get_traceback(), "Voxtelesys/3CX: Failed to create HD Ticket")
         frappe.local.response["http_status_code"] = 500
         return {"ok": False, "error": "Failed to create ticket — check Error Log"}
 
 
 def _validate_secret():
-    """
-    If voxtelesys_webhook_secret is set in site_config.json, require it
-    to be passed as ?secret= in the request URL.
-    """
+    """If voxtelesys_webhook_secret is set in site_config.json, require it
+    to be passed as ?secret= in the request URL."""
     expected = frappe.conf.get("voxtelesys_webhook_secret")
     if not expected:
-        return  # no secret configured — allow all
+        return
     provided = frappe.request.args.get("secret") or frappe.form_dict.get("secret") or ""
     if provided != expected:
         frappe.throw(_("Unauthorized"), frappe.PermissionError)
 
 
 def _find_contact(phone_number: str):
-    """
-    Look up a Contact by phone number. Returns (contact_name, email) or (None, None).
-    Strips +, spaces, and dashes for a loose suffix match.
-    """
+    """Loose suffix match on Contact Phone — strips +, spaces, dashes."""
     if not phone_number:
         return None, None