diff --git a/configs/grafana/dashboards/asterisk-overview.json b/configs/grafana/dashboards/asterisk-overview.json
new file mode 100644
index 0000000..50af847
--- /dev/null
+++ b/configs/grafana/dashboards/asterisk-overview.json
@@ -0,0 +1,170 @@
+{
+  "title": "Asterisk Overview",
+  "uid": "asterisk-overview",
+  "tags": ["voip", "asterisk", "pbx", "sip"],
+  "refresh": "30s",
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "panels": [
+    {
+      "title": "Asterisk VM Status",
+      "type": "stat",
+      "gridPos": {"h": 4, "w": 6, "x": 0, "y": 0},
+      "targets": [
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "pbx-1",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [{"type": "value", "options": {"0": {"text": "DOWN", "color": "red"}, "1": {"text": "UP", "color": "green"}}}],
+          "thresholds": {"mode": "absolute", "steps": [{"color": "red", "value": 0}, {"color": "green", "value": 1}]}
+        }
+      },
+      "options": {"colorMode": "background", "graphMode": "none"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Asterisk Info",
+      "type": "text",
+      "gridPos": {"h": 4, "w": 18, "x": 6, "y": 0},
+      "options": {
+        "mode": "markdown",
+        "content": "## Asterisk PBX (pbx-1)\n\n**Role:** Call processing, voicemail, IVR, recording\n\n| Port | Protocol | Purpose |\n|------|----------|--------|\n| 5080 | UDP | SIP (internal) |\n| 5038 | TCP | AMI (Asterisk Manager Interface) |\n| 8088 | TCP | ARI (Asterisk REST Interface) |\n\n*Note: Asterisk-specific metrics require asterisk_exporter to be installed*"
+      }
+    },
+    {
+      "title": "CPU Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 4},
+      "targets": [
+        {
+          "expr": "100 - (avg(irate(node_cpu_seconds_total{job=\"voip-nodes\", instance=\"pbx-1\", mode=\"idle\"}[5m])) * 100)",
+          "legendFormat": "CPU %",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Memory Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 4},
+      "targets": [
+        {
+          "expr": "node_memory_MemTotal_bytes{job=\"voip-nodes\", instance=\"pbx-1\"} - node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Used",
+          "refId": "A"
+        },
+        {
+          "expr": "node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Available",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "bytes"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network I/O",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_bytes_total{job=\"voip-nodes\", instance=\"pbx-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_bytes_total{job=\"voip-nodes\", instance=\"pbx-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Disk I/O (Recording Storage)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_disk_read_bytes_total{job=\"voip-nodes\", instance=\"pbx-1\"}[5m])",
+          "legendFormat": "Read",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_disk_written_bytes_total{job=\"voip-nodes\", instance=\"pbx-1\"}[5m])",
+          "legendFormat": "Write",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Disk Usage",
+      "type": "gauge",
+      "gridPos": {"h": 6, "w": 8, "x": 0, "y": 20},
+      "targets": [
+        {
+          "expr": "(1 - (node_filesystem_avail_bytes{job=\"voip-nodes\", instance=\"pbx-1\", mountpoint=\"/\"} / node_filesystem_size_bytes{job=\"voip-nodes\", instance=\"pbx-1\", mountpoint=\"/\"})) * 100",
+          "legendFormat": "Root",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": 0}, {"color": "yellow", "value": 70}, {"color": "red", "value": 85}]}
+        }
+      },
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Process Count",
+      "type": "stat",
+      "gridPos": {"h": 6, "w": 8, "x": 8, "y": 20},
+      "targets": [
+        {
+          "expr": "node_procs_running{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Running",
+          "refId": "A"
+        },
+        {
+          "expr": "node_procs_blocked{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Blocked",
+          "refId": "B"
+        }
+      ],
+      "options": {"colorMode": "value", "graphMode": "area"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "File Descriptors",
+      "type": "timeseries",
+      "gridPos": {"h": 6, "w": 8, "x": 16, "y": 20},
+      "targets": [
+        {
+          "expr": "node_filefd_allocated{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Allocated",
+          "refId": "A"
+        },
+        {
+          "expr": "node_filefd_maximum{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "Maximum",
+          "refId": "B"
+        }
+      ],
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    }
+  ]
+}
diff --git a/configs/grafana/dashboards/opensips-overview.json b/configs/grafana/dashboards/opensips-overview.json
new file mode 100644
index 0000000..fb9913a
--- /dev/null
+++ b/configs/grafana/dashboards/opensips-overview.json
@@ -0,0 +1,143 @@
+{
+  "title": "OpenSIPS Overview",
+  "uid": "opensips-overview",
+  "tags": ["voip", "opensips", "sip", "proxy"],
+  "refresh": "30s",
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "panels": [
+    {
+      "title": "OpenSIPS VM Status",
+      "type": "stat",
+      "gridPos": {"h": 4, "w": 6, "x": 0, "y": 0},
+      "targets": [
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "sip-1",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [{"type": "value", "options": {"0": {"text": "DOWN", "color": "red"}, "1": {"text": "UP", "color": "green"}}}],
+          "thresholds": {"mode": "absolute", "steps": [{"color": "red", "value": 0}, {"color": "green", "value": 1}]}
+        }
+      },
+      "options": {"colorMode": "background", "graphMode": "none"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "OpenSIPS Info",
+      "type": "text",
+      "gridPos": {"h": 4, "w": 18, "x": 6, "y": 0},
+      "options": {
+        "mode": "markdown",
+        "content": "## OpenSIPS SIP Proxy (sip-1)\n\n**Role:** SIP registration, routing, load balancing\n\n| Port | Protocol | Purpose |\n|------|----------|--------|\n| 5060 | UDP/TCP | SIP Signaling |\n| 5061 | TCP | SIP/TLS |\n| 8080 | TCP | WebSocket |\n| 8443 | TCP | WebSocket Secure |\n\n*Note: OpenSIPS-specific metrics require opensips_exporter to be installed*"
+      }
+    },
+    {
+      "title": "CPU Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 4},
+      "targets": [
+        {
+          "expr": "100 - (avg(irate(node_cpu_seconds_total{job=\"voip-nodes\", instance=\"sip-1\", mode=\"idle\"}[5m])) * 100)",
+          "legendFormat": "CPU %",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100, "color": {"mode": "palette-classic"}}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Memory Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 4},
+      "targets": [
+        {
+          "expr": "node_memory_MemTotal_bytes{job=\"voip-nodes\", instance=\"sip-1\"} - node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "Used",
+          "refId": "A"
+        },
+        {
+          "expr": "node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "Available",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "bytes"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network I/O",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_bytes_total{job=\"voip-nodes\", instance=\"sip-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_bytes_total{job=\"voip-nodes\", instance=\"sip-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network Packets",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_packets_total{job=\"voip-nodes\", instance=\"sip-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX Packets",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_packets_total{job=\"voip-nodes\", instance=\"sip-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX Packets",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "pps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "UDP Connections (SIP Traffic Indicator)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 20},
+      "targets": [
+        {
+          "expr": "node_sockstat_UDP_inuse{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "UDP Sockets",
+          "refId": "A"
+        }
+      ],
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "TCP Connections",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 20},
+      "targets": [
+        {
+          "expr": "node_sockstat_TCP_inuse{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "TCP Established",
+          "refId": "A"
+        },
+        {
+          "expr": "node_sockstat_TCP_tw{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "TCP Time-Wait",
+          "refId": "B"
+        }
+      ],
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    }
+  ]
+}
diff --git a/configs/grafana/dashboards/rtpengine-overview.json b/configs/grafana/dashboards/rtpengine-overview.json
new file mode 100644
index 0000000..832c48c
--- /dev/null
+++ b/configs/grafana/dashboards/rtpengine-overview.json
@@ -0,0 +1,201 @@
+{
+  "title": "RTPEngine Overview",
+  "uid": "rtpengine-overview",
+  "tags": ["voip", "rtpengine", "rtp", "media"],
+  "refresh": "30s",
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "panels": [
+    {
+      "title": "RTPEngine VM Status",
+      "type": "stat",
+      "gridPos": {"h": 4, "w": 6, "x": 0, "y": 0},
+      "targets": [
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "media-1",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [{"type": "value", "options": {"0": {"text": "DOWN", "color": "red"}, "1": {"text": "UP", "color": "green"}}}],
+          "thresholds": {"mode": "absolute", "steps": [{"color": "red", "value": 0}, {"color": "green", "value": 1}]}
+        }
+      },
+      "options": {"colorMode": "background", "graphMode": "none"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "RTPEngine Info",
+      "type": "text",
+      "gridPos": {"h": 4, "w": 18, "x": 6, "y": 0},
+      "options": {
+        "mode": "markdown",
+        "content": "## RTPEngine Media Proxy (media-1)\n\n**Role:** RTP/RTCP media relay, transcoding, SRTP encryption\n\n| Port Range | Protocol | Purpose |\n|------|----------|--------|\n| 10000-20000 | UDP | RTP Media Streams |\n| 22222 | UDP | Control (ng protocol) |\n\n**Key Metrics:** Network throughput is critical for RTPEngine as it handles all media streams.\n\n*Note: RTPEngine-specific metrics require rtpengine_exporter to be installed*"
+      }
+    },
+    {
+      "title": "CPU Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 4},
+      "targets": [
+        {
+          "expr": "100 - (avg(irate(node_cpu_seconds_total{job=\"voip-nodes\", instance=\"media-1\", mode=\"idle\"}[5m])) * 100)",
+          "legendFormat": "CPU %",
+          "refId": "A"
+        },
+        {
+          "expr": "avg(irate(node_cpu_seconds_total{job=\"voip-nodes\", instance=\"media-1\", mode=\"system\"}[5m])) * 100",
+          "legendFormat": "System %",
+          "refId": "B"
+        },
+        {
+          "expr": "avg(irate(node_cpu_seconds_total{job=\"voip-nodes\", instance=\"media-1\", mode=\"softirq\"}[5m])) * 100",
+          "legendFormat": "SoftIRQ % (Network)",
+          "refId": "C"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Memory Usage",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 4},
+      "targets": [
+        {
+          "expr": "node_memory_MemTotal_bytes{job=\"voip-nodes\", instance=\"media-1\"} - node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "Used",
+          "refId": "A"
+        },
+        {
+          "expr": "node_memory_MemAvailable_bytes{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "Available",
+          "refId": "B"
+        },
+        {
+          "expr": "node_memory_Buffers_bytes{job=\"voip-nodes\", instance=\"media-1\"} + node_memory_Cached_bytes{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "Buffers+Cache",
+          "refId": "C"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "bytes"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network Throughput (Critical for Media)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 24, "x": 0, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_bytes_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX (Inbound Media)",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_bytes_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX (Outbound Media)",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps", "custom": {"lineWidth": 2, "fillOpacity": 20}}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "UDP Packets (RTP Traffic)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 20},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_packets_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX Packets/s",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_packets_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX Packets/s",
+          "refId": "B"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "pps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network Errors & Drops",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 20},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_drop_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX Drops",
+          "refId": "A"
+        },
+        {
+          "expr": "rate(node_network_transmit_drop_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX Drops",
+          "refId": "B"
+        },
+        {
+          "expr": "rate(node_network_receive_errs_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "RX Errors",
+          "refId": "C"
+        },
+        {
+          "expr": "rate(node_network_transmit_errs_total{job=\"voip-nodes\", instance=\"media-1\", device=\"lima0\"}[5m])",
+          "legendFormat": "TX Errors",
+          "refId": "D"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": 0}, {"color": "yellow", "value": 1}, {"color": "red", "value": 10}]}
+        }
+      },
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "UDP Socket Usage",
+      "type": "stat",
+      "gridPos": {"h": 4, "w": 8, "x": 0, "y": 28},
+      "targets": [
+        {
+          "expr": "node_sockstat_UDP_inuse{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "UDP Sockets",
+          "refId": "A"
+        }
+      ],
+      "options": {"colorMode": "value", "graphMode": "area"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Context Switches",
+      "type": "timeseries",
+      "gridPos": {"h": 4, "w": 8, "x": 8, "y": 28},
+      "targets": [
+        {
+          "expr": "rate(node_context_switches_total{job=\"voip-nodes\", instance=\"media-1\"}[5m])",
+          "legendFormat": "Context Switches/s",
+          "refId": "A"
+        }
+      ],
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Interrupts",
+      "type": "timeseries",
+      "gridPos": {"h": 4, "w": 8, "x": 16, "y": 28},
+      "targets": [
+        {
+          "expr": "rate(node_intr_total{job=\"voip-nodes\", instance=\"media-1\"}[5m])",
+          "legendFormat": "Interrupts/s",
+          "refId": "A"
+        }
+      ],
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    }
+  ]
+}
diff --git a/configs/grafana/dashboards/voip-overview.json b/configs/grafana/dashboards/voip-overview.json
new file mode 100644
index 0000000..5832fbf
--- /dev/null
+++ b/configs/grafana/dashboards/voip-overview.json
@@ -0,0 +1,164 @@
+{
+  "title": "VoIP Stack Overview",
+  "uid": "voip-overview",
+  "tags": ["voip", "overview", "sip", "asterisk", "opensips", "rtpengine"],
+  "refresh": "30s",
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "panels": [
+    {
+      "title": "VoIP VM Status",
+      "type": "stat",
+      "gridPos": {"h": 4, "w": 8, "x": 0, "y": 0},
+      "targets": [
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"sip-1\"}",
+          "legendFormat": "sip-1 (OpenSIPS)",
+          "refId": "A"
+        },
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"pbx-1\"}",
+          "legendFormat": "pbx-1 (Asterisk)",
+          "refId": "B"
+        },
+        {
+          "expr": "up{job=\"voip-nodes\", instance=\"media-1\"}",
+          "legendFormat": "media-1 (RTPEngine)",
+          "refId": "C"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "mappings": [
+            {"type": "value", "options": {"0": {"text": "DOWN", "color": "red"}, "1": {"text": "UP", "color": "green"}}}
+          ],
+          "thresholds": {"mode": "absolute", "steps": [{"color": "red", "value": 0}, {"color": "green", "value": 1}]}
+        }
+      },
+      "options": {"colorMode": "value", "graphMode": "none", "orientation": "horizontal"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "VoIP Architecture",
+      "type": "text",
+      "gridPos": {"h": 4, "w": 16, "x": 8, "y": 0},
+      "options": {
+        "mode": "markdown",
+        "content": "## Three-Tier VoIP Architecture\n\n| VM | Role | Component | Ports |\n|---|---|---|---|\n| **sip-1** | SIP Proxy | OpenSIPS | 5060/UDP, 5061/TCP |\n| **pbx-1** | PBX | Asterisk | 5080/UDP, 5038/TCP (AMI), 8088/TCP (ARI) |\n| **media-1** | Media Relay | RTPEngine | 10000-20000/UDP |"
+      }
+    },
+    {
+      "title": "CPU Usage by VM",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 4},
+      "targets": [
+        {
+          "expr": "100 - (avg by (instance) (irate(node_cpu_seconds_total{job=\"voip-nodes\", mode=\"idle\"}[5m])) * 100)",
+          "legendFormat": "{{instance}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Memory Usage by VM",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 4},
+      "targets": [
+        {
+          "expr": "(1 - (node_memory_MemAvailable_bytes{job=\"voip-nodes\"} / node_memory_MemTotal_bytes{job=\"voip-nodes\"})) * 100",
+          "legendFormat": "{{instance}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network RX (Receive)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 0, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_receive_bytes_total{job=\"voip-nodes\", device!~\"lo|veth.*\"}[5m])",
+          "legendFormat": "{{instance}} - {{device}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Network TX (Transmit)",
+      "type": "timeseries",
+      "gridPos": {"h": 8, "w": 12, "x": 12, "y": 12},
+      "targets": [
+        {
+          "expr": "rate(node_network_transmit_bytes_total{job=\"voip-nodes\", device!~\"lo|veth.*\"}[5m])",
+          "legendFormat": "{{instance}} - {{device}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "Bps"}},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Disk Usage",
+      "type": "gauge",
+      "gridPos": {"h": 6, "w": 8, "x": 0, "y": 20},
+      "targets": [
+        {
+          "expr": "(1 - (node_filesystem_avail_bytes{job=\"voip-nodes\", mountpoint=\"/\"} / node_filesystem_size_bytes{job=\"voip-nodes\", mountpoint=\"/\"})) * 100",
+          "legendFormat": "{{instance}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": 0}, {"color": "yellow", "value": 70}, {"color": "red", "value": 85}]}
+        }
+      },
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Load Average (1m)",
+      "type": "stat",
+      "gridPos": {"h": 6, "w": 8, "x": 8, "y": 20},
+      "targets": [
+        {
+          "expr": "node_load1{job=\"voip-nodes\"}",
+          "legendFormat": "{{instance}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": 0}, {"color": "yellow", "value": 2}, {"color": "red", "value": 4}]}
+        }
+      },
+      "options": {"colorMode": "value", "graphMode": "area"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    },
+    {
+      "title": "Uptime",
+      "type": "stat",
+      "gridPos": {"h": 6, "w": 8, "x": 16, "y": 20},
+      "targets": [
+        {
+          "expr": "node_time_seconds{job=\"voip-nodes\"} - node_boot_time_seconds{job=\"voip-nodes\"}",
+          "legendFormat": "{{instance}}",
+          "refId": "A"
+        }
+      ],
+      "fieldConfig": {"defaults": {"unit": "s"}},
+      "options": {"colorMode": "value", "graphMode": "none"},
+      "datasource": {"type": "prometheus", "uid": "Prometheus"}
+    }
+  ]
+}
diff --git a/configs/prometheus/prometheus.yml b/configs/prometheus/prometheus.yml
index a072fd3..280ca1f 100644
--- a/configs/prometheus/prometheus.yml
+++ b/configs/prometheus/prometheus.yml
@@ -98,6 +98,39 @@ scrape_configs:
   #   static_configs:
   #     - targets: ['cadvisor:8080']
 
+  # VoIP Stack - Lima VMs (OpenSIPS, Asterisk, RTPEngine)
+  - job_name: 'voip-nodes'
+    static_configs:
+      - targets:
+          - '192.168.105.2:9100'  # sip-1 (OpenSIPS)
+          - '192.168.105.6:9100'  # pbx-1 (Asterisk)
+          - '192.168.105.5:9100'  # media-1 (RTPEngine)
+    relabel_configs:
+      - source_labels: [__address__]
+        regex: '192.168.105.2:.*'
+        target_label: instance
+        replacement: 'sip-1'
+      - source_labels: [__address__]
+        regex: '192.168.105.6:.*'
+        target_label: instance
+        replacement: 'pbx-1'
+      - source_labels: [__address__]
+        regex: '192.168.105.5:.*'
+        target_label: instance
+        replacement: 'media-1'
+      - source_labels: [__address__]
+        regex: '192.168.105.2:.*'
+        target_label: role
+        replacement: 'sip-proxy'
+      - source_labels: [__address__]
+        regex: '192.168.105.6:.*'
+        target_label: role
+        replacement: 'pbx'
+      - source_labels: [__address__]
+        regex: '192.168.105.5:.*'
+        target_label: role
+        replacement: 'media'
+
   # Vault metrics (if enabled)
   - job_name: 'vault'
     metrics_path: '/v1/sys/metrics'