Split the PSTN permission tier into independent inbound and outbound axes

One tier and one allowed_numbers list governed both directions, with the same list matched against dialled numbers going out and caller IDs coming in. Those are different sets, so "dial anyone but only accept calls from a short list" — and its reverse — were not expressible at all. pstn-permissions.conf now carries tier_out/allowed_out and tier_in/allowed_in. The dialplan reads them in the four places that gate a call: the outbound NANP pattern, the international leg, each ring-group member block, and personal-DID inbound routing — plus the group-ring shell helper. Internal extension-to-extension calling and ring groups remain ungated by either, as before. Existing installs are migrated in place by _pstn_migrate_permissions_split, which copies the old single tier into both directions (reproducing the box's current behaviour exactly), backs the file up first, and is idempotent. It runs alongside the dialplan write rather than after a reload, since the new dialplan reading un-migrated keys would fail closed and deny every call. tier/allowed_numbers keep being written as a mirror of the outbound values so that rolling back to a pre-split pstn-trunk.sh degrades to the old semantics instead of breaking. The dashboard's Extensions table gains Outbound/Can-dial and Inbound/Can-be- called-by columns, each number field enabled only by its own tier, tier columns sorting by permissiveness rather than alphabetically, and a save that posts the whole permission record so an unchanged direction isn't reset. Verified: the migration on a hand-written config (idempotent on rerun, messaging and personal_did preserved); generated dialplan and group-ring helper reading the split keys; and the group-ring helper resolving a real three-extension case — out=full/in=restricted rings only for a whitelisted caller, out=restricted/in=full rings for everyone, in=internal never rings — plus the browser round-trip writing tier_out=full with tier_in=restricted. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NAddJGE1G6eGaPzmScG5Vh
2026-07-25 10:30:11 +00:00
parent 0eb09eec9c
commit 5747ad7fda
2 changed files with 298 additions and 103 deletions
@@ -226,9 +226,17 @@ which tab a given extension's settings live on.
 - **Extensions** — one row per extension, merged from \`pjsip.conf\` (which
  always works) and, when the Easy Asterisk container is reachable, its own
  device list. Columns: Ext, Name, then Category/Status/Transport if that
-  container is present, then Tier/Approved-numbers if a PSTN trunk dialplan
-  is installed, then Messaging (always — internal SIP texting has no PSTN
-  dependency at all: no cost, no carrier, no DID).
+  container is present, then four PSTN columns if a trunk dialplan is
+  installed — **Outbound** tier + "Can dial", and **Inbound** tier + "Can be
+  called by" — then Messaging (always: internal SIP texting has no PSTN
+  dependency at all — no cost, no carrier, no DID).
+
+  The two PSTN directions are independent. Each is \`internal\` (no PSTN that
+  way), \`restricted\` (only the numbers beside it) or \`full\` (any US
+  number), and each has its own list, because they hold different things:
+  "Can dial" is numbers this extension may call, "Can be called by" is caller
+  IDs allowed to reach it. Internal extension-to-extension calling and ring
+  groups are never gated by either.

  Name and Category are edited **in place**; every cell feeds one batched
  save. Rows you've touched get a highlight and a left rail, a sticky bar
@@ -1134,7 +1142,12 @@ def _write_ini_cp(path, header, cp):


 PERMISSIONS_HEADER = (
-    "; PSTN permission tiers - internal / restricted / full - PLUS two\n"
+    "; PSTN permission tiers - internal / restricted / full - set SEPARATELY\n"
+    "; per direction: tier_out/allowed_out gate what an extension may DIAL,\n"
+    "; tier_in/allowed_in gate which CALLER IDs may reach it. 'tier' and\n"
+    "; 'allowed_numbers' mirror the outbound values so a rollback to a\n"
+    "; pre-split pstn-trunk.sh still works; nothing reads them otherwise.\n"
+    "; PLUS two\n"
    "; independent per-extension axes: messaging (internal SIP MESSAGE\n"
    "; texting) and personal_did (outbound Caller-ID override; inbound\n"
    "; routing for personal DIDs lives in pstn-personal-dids.conf).\n"
@@ -1173,70 +1186,124 @@ def _read_permissions_cp():


 def get_all_permissions():
-    """{ext: {"tier": ..., "allowed_numbers": "num|num|...", "messaging":
-    bool}} for every extension with a non-default record. Extensions with
-    no section are implicitly "internal"/messaging-disabled — the
-    dialplan's AST_CONFIG() lookup treats a missing section/key as empty/
-    denied the same way, so there's nothing to return for them here; the
-    UI fills in the defaults for any known extension (from
-    list_extensions()) not present in this dict."""
+    """{ext: {"tier_out", "allowed_out", "tier_in", "allowed_in",
+    "messaging"}} for every extension with a non-default record.
+
+    Outbound and inbound are independent axes: tier_out/allowed_out gate what
+    an extension may DIAL, tier_in/allowed_in gate which CALLER IDs may reach
+    it (ring-group membership and personal-DID routing). That's what makes
+    "dial anyone, only accept calls from a list" and "answer anyone, only
+    dial a list" both expressible.
+
+    Falls back to the pre-split 'tier'/'allowed_numbers' keys for either
+    direction that hasn't been migrated yet, so the UI reads correctly even
+    on a box where services/pstn-trunk.sh hasn't been re-run — the migration
+    itself lives there, not here.
+
+    Extensions with no section are implicitly internal/messaging-disabled —
+    the dialplan's AST_CONFIG() lookup treats a missing section/key as
+    empty/denied the same way, so there's nothing to return for them; the UI
+    fills in defaults for any known extension not present in this dict."""
    cp = _read_permissions_cp()
    result = {}
    for section in cp.sections():
        if not EXTEN_RE.match(section):
            continue
+        legacy_tier = cp.get(section, "tier", fallback="internal")
+        legacy_nums = cp.get(section, "allowed_numbers", fallback="")
        result[section] = {
-            "tier": cp.get(section, "tier", fallback="internal"),
-            "allowed_numbers": cp.get(section, "allowed_numbers", fallback=""),
+            "tier_out": cp.get(section, "tier_out", fallback=legacy_tier),
+            "allowed_out": cp.get(section, "allowed_out", fallback=legacy_nums),
+            "tier_in": cp.get(section, "tier_in", fallback=legacy_tier),
+            "allowed_in": cp.get(section, "allowed_in", fallback=legacy_nums),
            "messaging": cp.getboolean(section, "messaging", fallback=False),
        }
    return result


-def write_permission(ext, tier, numbers_raw, messaging_enabled=False):
-    """Saves one extension's tier + (for restricted) approved-number list +
-    messaging flag in one action — messaging is an independent axis from
-    the calling tier (see pstn-trunk.sh's file-level comment: an extension
-    can be internal-tier for calling and still messaging-enabled, or vice
-    versa), so it's set/cleared regardless of which tier branch runs below.
-    Numbers are normalized to a pipe-separated list of 11-digit US numbers
-    (a bare 10-digit entry gets a leading "1" added, not dropped — see
-    _normalize_nanp_number) — pipe, not comma, because the dialplan uses
-    this value directly as a REGEX() alternation pattern (see
-    services/pstn-trunk.sh's file-level comment on why the untrusted call
-    data is always the string being tested, never interpolated into the
-    pattern side)."""
+def _apply_direction(cp, ext, prefix, tier, numbers_raw):
+    """Write one direction's tier + number list, returning the cleaned list.
+
+    prefix is "out" or "in". Setting a direction to internal drops only that
+    direction's two keys, never the whole section — an extension can
+    independently carry messaging=yes, a personal_did, and a permissive
+    setting in the OTHER direction, all of which must survive. (Removing the
+    section wholesale here was a real, confirmed bug in the single-tier
+    version of this function.)"""
+    tokens = re.split(r"[,\s|]+", (numbers_raw or "").strip())
+    clean = [n for n in (_normalize_nanp_number(t) for t in tokens if t) if n]
+    joined = "|".join(clean)
+
+    tier_key = "tier_" + prefix
+    nums_key = "allowed_" + prefix
+
+    if tier == "internal":
+        if cp.has_section(ext):
+            for key in (tier_key, nums_key):
+                if cp.has_option(ext, key):
+                    cp.remove_option(ext, key)
+        return clean
+
+    if not cp.has_section(ext):
+        cp.add_section(ext)
+    cp.set(ext, tier_key, tier)
+    if tier == "restricted":
+        cp.set(ext, nums_key, joined)
+    elif cp.has_option(ext, nums_key):
+        cp.remove_option(ext, nums_key)
+    return clean
+
+
+def write_permission(ext, tier_out, allowed_out_raw, tier_in, allowed_in_raw,
+                     messaging_enabled=False):
+    """Saves one extension's outbound tier + numbers, inbound tier + numbers,
+    and messaging flag in one action.
+
+    The two directions are independent: allowed_out holds numbers this
+    extension may DIAL, allowed_in holds CALLER IDs allowed to reach it. They
+    used to be one field serving both, which made "outbound to anyone,
+    inbound from a short list" impossible to express.
+
+    Messaging is a third independent axis (see pstn-trunk.sh's file-level
+    comment: an extension can be internal for calling and still
+    messaging-enabled, or vice versa), so it's set/cleared regardless of
+    either tier.
+
+    Numbers normalize to a pipe-separated list of 11-digit US numbers (a bare
+    10-digit entry gains a leading "1" rather than being dropped — see
+    _normalize_nanp_number). Pipe, not comma, because the dialplan uses the
+    value directly as a REGEX() alternation — see services/pstn-trunk.sh on
+    why untrusted call data is always the string being tested, never
+    interpolated into the pattern side.
+
+    'tier'/'allowed_numbers' are also written, mirroring the outbound values,
+    purely so that rolling back to a pre-split pstn-trunk.sh keeps working
+    with the old single-tier semantics. Nothing reads them once the split
+    dialplan is installed."""
    if not ASTERISK_CONFIG_DIR:
        return False, "No Asterisk install detected on this box"
    ext = str(ext).strip()
    if not EXTEN_RE.match(ext):
        return False, "Invalid extension"
-    if not TIER_RE.match(tier):
-        return False, "Invalid tier"
-
-    tokens = re.split(r"[,\s|]+", (numbers_raw or "").strip())
-    clean_numbers = [n for n in (_normalize_nanp_number(t) for t in tokens if t) if n]
-    numbers = "|".join(clean_numbers)
+    if not TIER_RE.match(tier_out or ""):
+        return False, "Invalid outbound tier"
+    if not TIER_RE.match(tier_in or ""):
+        return False, "Invalid inbound tier"

    cp = _read_permissions_cp()
-    if tier == "internal":
-        # Only drop the tier/allowed_numbers keys, NOT the whole section —
-        # an extension can independently have messaging=yes and/or a
-        # personal_did assigned, and those must survive a tier change back
-        # to internal. Confirmed live as a real bug: cp.remove_section(ext)
-        # here used to silently discard both whenever tier was set to
-        # internal.
+    clean_out = _apply_direction(cp, ext, "out", tier_out, allowed_out_raw)
+    clean_in = _apply_direction(cp, ext, "in", tier_in, allowed_in_raw)
+
+    # Rollback mirror — outbound values under the pre-split key names.
+    if tier_out == "internal":
        if cp.has_section(ext):
-            if cp.has_option(ext, "tier"):
-                cp.remove_option(ext, "tier")
-            if cp.has_option(ext, "allowed_numbers"):
-                cp.remove_option(ext, "allowed_numbers")
+            for key in ("tier", "allowed_numbers"):
+                if cp.has_option(ext, key):
+                    cp.remove_option(ext, key)
    else:
-        if not cp.has_section(ext):
-            cp.add_section(ext)
-        cp.set(ext, "tier", tier)
-        if tier == "restricted":
-            cp.set(ext, "allowed_numbers", numbers)
+        cp.set(ext, "tier", tier_out)
+        if tier_out == "restricted":
+            cp.set(ext, "allowed_numbers", "|".join(clean_out))
        elif cp.has_option(ext, "allowed_numbers"):
            cp.remove_option(ext, "allowed_numbers")

@@ -1247,9 +1314,9 @@ def write_permission(ext, tier, numbers_raw, messaging_enabled=False):
    elif cp.has_section(ext) and cp.has_option(ext, "messaging"):
        cp.remove_option(ext, "messaging")

-    # Drop the section entirely once nothing (tier, numbers, messaging,
-    # personal_did) is left in it — only reached this way when tier is
-    # internal, messaging is off, and no personal_did was ever assigned.
+    # Drop the section entirely once nothing is left in it — only reachable
+    # when both directions are internal, messaging is off, and no
+    # personal_did was ever assigned.
    if cp.has_section(ext) and not cp.options(ext):
        cp.remove_section(ext)

@@ -1257,8 +1324,14 @@ def write_permission(ext, tier, numbers_raw, messaging_enabled=False):
    if not ok:
        return False, err

-    if tier == "restricted" and not clean_numbers:
-        return True, "Saved as restricted with an EMPTY approved list — no PSTN number can reach/be reached by it yet."
+    empty = []
+    if tier_out == "restricted" and not clean_out:
+        empty.append("outbound")
+    if tier_in == "restricted" and not clean_in:
+        empty.append("inbound")
+    if empty:
+        return True, ("Saved, but the " + " and ".join(empty) +
+                      " list is restricted and EMPTY — no PSTN number is permitted in that direction yet.")
    return True, "Saved"


@@ -2602,7 +2675,8 @@ INDEX_HTML = """<!doctype html>
        <details class="help">
          <summary>What these columns mean</summary>
          <p class="muted"><b>Name</b> and <b>Category</b> are editable in place — click, type, then Save. Adding an extension generates a random password and reloads PJSIP + rebuilds the dialplan automatically; the password is shown once, at the top of this card.</p>
-          <p class="muted pstn-only"><b>Tier</b> — <b>internal</b>: no PSTN, can still call/receive other extensions and internal ring groups. <b>restricted</b>: internal, plus only the pre-approved US numbers in the next column. <b>full</b>: internal, plus any US number. Usually live on the next call; if one doesn't seem to take effect, use "Commit changes" above.</p>
+            <p class="muted pstn-only"><b>Outbound</b> and <b>Inbound</b> are independent. Each is <b>internal</b> (no PSTN in that direction — internal extension-to-extension calling and ring groups always keep working either way), <b>restricted</b> (only the numbers listed beside it), or <b>full</b> (any US number). So "dial anyone, only take calls from family" is Outbound&nbsp;full + Inbound&nbsp;restricted, and the reverse is just as valid.</p>
+          <p class="muted pstn-only"><b>Can dial</b> holds numbers this extension is allowed to <i>call</i>; <b>Can be called by</b> holds caller IDs allowed to <i>reach</i> it — different lists, which is why they're separate fields. Each is only editable when its own side is set to restricted. Usually live on the next call; if one doesn't seem to take effect, use "Commit changes" above.</p>
          <p class="muted"><b>Messaging</b> — Asterisk's native SIP texting between extensions: no carrier SMS, no PSTN, no cost, and no dependency on a PSTN trunk at all (which is why this column is here even with no trunk installed). Independent of the calling tier. Enforced live by a dedicated dialplan context — see <code>services/asterisk.sh</code>'s README, including its caveat that the sender-extraction logic still needs real-traffic confirmation. If this box predates that wiring, rerun <code>sudo ./setup.sh asterisk</code>.</p>
        </details>

@@ -2613,8 +2687,10 @@ INDEX_HTML = """<!doctype html>
            <th class="ea-only">Category</th>
            <th class="sortable ea-only" data-sort="status">Status</th>
            <th class="ea-only">Transport</th>
-            <th class="sortable pstn-only" data-sort="tier">Tier</th>
-            <th class="pstn-only">Approved numbers</th>
+            <th class="sortable pstn-only" data-sort="tier_out">Outbound</th>
+            <th class="pstn-only">Can dial</th>
+            <th class="sortable pstn-only" data-sort="tier_in">Inbound</th>
+            <th class="pstn-only">Can be called by</th>
            <th class="sortable" data-sort="messaging">Messaging</th>
            <th></th>
          </tr></thead><tbody></tbody></table>
@@ -3093,7 +3169,9 @@ async function loadExtensions() {
  const permData = await fetch("/api/pstn-permissions").then(r => r.json());
  const byExt = new Map();
  (permData.extensions || []).forEach(e => byExt.set(e.ext, {
-    ext: e.ext, name: e.name, tier: e.tier, allowed_numbers: e.allowed_numbers,
+    ext: e.ext, name: e.name,
+    tier_out: e.tier_out, allowed_out: e.allowed_out,
+    tier_in: e.tier_in, allowed_in: e.allowed_in,
    messaging: e.messaging, ea: false, category: "", status: "", transport: "", encryption: "",
  }));

@@ -3103,7 +3181,10 @@ async function loadExtensions() {
    eaStatusMap = devData.status || {};
    eaDevices.forEach(d => {
      const row = byExt.get(d.extension) || {
-        ext: d.extension, name: d.name, tier: "internal", allowed_numbers: "", messaging: false,
+        ext: d.extension, name: d.name,
+        tier_out: "internal", allowed_out: "",
+        tier_in: "internal", allowed_in: "",
+        messaging: false,
      };
      row.ea = true;
      row.name = row.name || d.name;
@@ -3124,9 +3205,15 @@ async function loadExtensions() {
 let extRows = [];
 let extSort = { key: null, dir: 1 };

+// internal < restricted < full, so sorting a tier column groups by how
+// permissive it is rather than alphabetically (full would otherwise sort
+// between the other two).
+const TIER_ORDER = { internal: 0, restricted: 1, full: 2 };
+
 function extSortValue(e, key) {
  if (key === "ext") return parseInt(e.ext, 10);
  if (key === "messaging") return e.messaging ? 1 : 0;
+  if (key === "tier_out" || key === "tier_in") return TIER_ORDER[e[key]] ?? -1;
  return (e[key] || "").toString().toLowerCase();
 }

@@ -3135,11 +3222,18 @@ function setCount(id, n) {
  if (el) el.textContent = n ? "(" + n + ")" : "";
 }

+function tierSelect(cls, value) {
+  return `<select class="${cls}">` +
+    ["internal", "restricted", "full"].map(t =>
+      `<option value="${t}" ${value === t ? "selected" : ""}>${t}</option>`).join("") +
+    "</select>";
+}
+
 function renderExtensions() {
  const tbody = document.querySelector("#ext-table tbody");
  setCount("ext-count", extRows.length);
  if (!extRows.length) {
-    tbody.innerHTML = '<tr><td colspan=9 class=empty>No extensions found — no Asterisk install detected, or pjsip.conf has no devices yet.</td></tr>';
+    tbody.innerHTML = '<tr><td colspan=11 class=empty>No extensions found — no Asterisk install detected, or pjsip.conf has no devices yet.</td></tr>';
    updateDirtyState();
    return;
  }
@@ -3179,14 +3273,10 @@ function renderExtensions() {
      <td class="ea-only">${catCell}</td>
      <td class="ea-only">${statusCell}</td>
      <td class="ea-only muted">${esc(e.transport)}${e.encryption && e.encryption !== "no" ? " / " + esc(e.encryption) : ""}</td>
-      <td class="pstn-only">
-        <select class="ext-tier">
-          <option value="internal" ${e.tier === "internal" ? "selected" : ""}>internal</option>
-          <option value="restricted" ${e.tier === "restricted" ? "selected" : ""}>restricted</option>
-          <option value="full" ${e.tier === "full" ? "selected" : ""}>full</option>
-        </select>
-      </td>
-      <td class="pstn-only"><input type="text" class="ext-numbers" value="${esc(e.allowed_numbers)}" placeholder="5551234567,5559876543" ${e.tier === "restricted" ? "" : "disabled"} style="width:15rem"></td>
+      <td class="pstn-only">${tierSelect("ext-tier-out", e.tier_out)}</td>
+      <td class="pstn-only"><input type="text" class="ext-numbers-out" value="${esc(e.allowed_out)}" placeholder="5551234567,5559876543" ${e.tier_out === "restricted" ? "" : "disabled"} style="width:13rem" aria-label="Numbers extension ${esc(e.ext)} may dial"></td>
+      <td class="pstn-only">${tierSelect("ext-tier-in", e.tier_in)}</td>
+      <td class="pstn-only"><input type="text" class="ext-numbers-in" value="${esc(e.allowed_in)}" placeholder="5551234567,5559876543" ${e.tier_in === "restricted" ? "" : "disabled"} style="width:13rem" aria-label="Caller IDs allowed to reach extension ${esc(e.ext)}"></td>
      <td style="text-align:center"><input type="checkbox" class="ext-messaging" ${e.messaging ? "checked" : ""} aria-label="Messaging for extension ${esc(e.ext)}"></td>
      <td class="actions">
        <button class="icon ea-only" title="Delete extension ${esc(e.ext)}" onclick="deleteEaDevice('${esc(e.ext)}')">&times;</button>
@@ -3195,11 +3285,14 @@ function renderExtensions() {
  }).join("");

  tbody.querySelectorAll("tr").forEach(row => {
-    const tierSel = row.querySelector(".ext-tier");
-    const numsInput = row.querySelector(".ext-numbers");
-    if (tierSel && numsInput) {
-      tierSel.addEventListener("change", () => { numsInput.disabled = tierSel.value !== "restricted"; });
-    }
+    // Each direction's number field follows its own tier, not the other's.
+    [["out"], ["in"]].forEach(([dir]) => {
+      const tierSel = row.querySelector(".ext-tier-" + dir);
+      const numsInput = row.querySelector(".ext-numbers-" + dir);
+      if (tierSel && numsInput) {
+        tierSel.addEventListener("change", () => { numsInput.disabled = tierSel.value !== "restricted"; });
+      }
+    });
    row.querySelectorAll("input, select").forEach(ctl => {
      ctl.addEventListener("input", updateDirtyState);
      ctl.addEventListener("change", updateDirtyState);
@@ -3219,14 +3312,18 @@ function rowEdits(tr) {
  if (!model) return null;
  const nameEl = tr.querySelector(".ext-name");
  const catEl = tr.querySelector(".ext-category");
-  const tierEl = tr.querySelector(".ext-tier");
-  const numsEl = tr.querySelector(".ext-numbers");
+  const tierOutEl = tr.querySelector(".ext-tier-out");
+  const numsOutEl = tr.querySelector(".ext-numbers-out");
+  const tierInEl = tr.querySelector(".ext-tier-in");
+  const numsInEl = tr.querySelector(".ext-numbers-in");
  const msgEl = tr.querySelector(".ext-messaging");
  const edits = {};
  if (nameEl && !nameEl.disabled && nameEl.value.trim() !== model.name) edits.name = nameEl.value.trim();
  if (catEl && catEl.value !== model.category) edits.category = catEl.value;
-  if (tierEl && tierEl.value !== model.tier) edits.tier = tierEl.value;
-  if (numsEl && numsEl.value !== model.allowed_numbers) edits.allowed_numbers = numsEl.value;
+  if (tierOutEl && tierOutEl.value !== model.tier_out) edits.tier_out = tierOutEl.value;
+  if (numsOutEl && numsOutEl.value !== model.allowed_out) edits.allowed_out = numsOutEl.value;
+  if (tierInEl && tierInEl.value !== model.tier_in) edits.tier_in = tierInEl.value;
+  if (numsInEl && numsInEl.value !== model.allowed_in) edits.allowed_in = numsInEl.value;
  if (msgEl && msgEl.checked !== !!model.messaging) edits.messaging = msgEl.checked;
  return {ext, model, edits, tr, count: Object.keys(edits).length};
 }
@@ -3275,14 +3372,20 @@ document.getElementById("ext-save-all").addEventListener("click", async () => {
        const r = await postJSON("/api/ea-devices/category", {extension: ext, category: edits.category});
        if (!r.ok) throw new Error(r.message || "category change failed");
      }
-      if ("tier" in edits || "allowed_numbers" in edits || "messaging" in edits) {
+      const permKeys = ["tier_out", "allowed_out", "tier_in", "allowed_in", "messaging"];
+      if (permKeys.some(k => k in edits)) {
        const messaging = "messaging" in edits ? edits.messaging : !!model.messaging;
        let r;
        if (pstnInstalled) {
+          // Send the whole permission record, not just the changed fields —
+          // the endpoint rewrites both directions, so omitting an unchanged
+          // one would silently reset it.
          r = await postJSON("/api/pstn-permissions", {
            ext: ext,
-            tier: "tier" in edits ? edits.tier : model.tier,
-            allowed_numbers: "allowed_numbers" in edits ? edits.allowed_numbers : model.allowed_numbers,
+            tier_out: "tier_out" in edits ? edits.tier_out : model.tier_out,
+            allowed_out: "allowed_out" in edits ? edits.allowed_out : model.allowed_out,
+            tier_in: "tier_in" in edits ? edits.tier_in : model.tier_in,
+            allowed_in: "allowed_in" in edits ? edits.allowed_in : model.allowed_in,
            messaging: messaging,
          });
        } else {
@@ -3815,9 +3918,12 @@ class Handler(BaseHTTPRequestHandler):
            perms = get_all_permissions()
            extensions = []
            for e in list_extensions():
-                p = perms.get(e["ext"], {"tier": "internal", "allowed_numbers": "", "messaging": False})
-                extensions.append({"ext": e["ext"], "name": e["name"], "tier": p["tier"],
-                                    "allowed_numbers": p["allowed_numbers"], "messaging": p["messaging"]})
+                p = perms.get(e["ext"], {"tier_out": "internal", "allowed_out": "",
+                                          "tier_in": "internal", "allowed_in": "", "messaging": False})
+                extensions.append({"ext": e["ext"], "name": e["name"],
+                                    "tier_out": p["tier_out"], "allowed_out": p["allowed_out"],
+                                    "tier_in": p["tier_in"], "allowed_in": p["allowed_in"],
+                                    "messaging": p["messaging"]})
            self._json({"extensions": extensions})
        elif self.path == "/api/pstn-limits":
            self._json(get_limits())
@@ -3860,8 +3966,10 @@ class Handler(BaseHTTPRequestHandler):
            self._json(ban_asn(payload.get("asn", "")))
        elif self.path == "/api/pstn-permissions":
            ok, message = write_permission(
-                payload.get("ext", ""), payload.get("tier", ""), payload.get("allowed_numbers", ""),
-                bool(payload.get("messaging", False))
+                payload.get("ext", ""),
+                payload.get("tier_out", ""), payload.get("allowed_out", ""),
+                payload.get("tier_in", ""), payload.get("allowed_in", ""),
+                bool(payload.get("messaging", False)),
            )
            self._json({"ok": ok, "message": message})
        elif self.path == "/api/pstn-limits":