diff --git a/csdr/chain/toolbox.py b/csdr/chain/toolbox.py
index 1a3d19b8..7a95833a 100644
--- a/csdr/chain/toolbox.py
+++ b/csdr/chain/toolbox.py
@@ -84,14 +84,21 @@ class EasDemodulator(MultimonDemodulator):
 class SelCallDemodulator(MultimonDemodulator):
     def __init__(self, service: bool = False):
         super().__init__(
-# These aappear to be rarely used and very similar, so they trigger at once
-#            "ZVEI1", "ZVEI2", "ZVEI3", "DZVEI", "PZVEI",
             ["DTMF", "EEA", "EIA", "CCIR"],
             SelCallParser(service=service),
             withSquelch = True
         )
 
 
+class ZveiDemodulator(MultimonDemodulator):
+    def __init__(self, service: bool = False):
+        super().__init__(
+            ["ZVEI1", "ZVEI2", "ZVEI3", "DZVEI", "PZVEI"],
+            SelCallParser(service=service),
+            withSquelch = True
+        )
+
+
 class HfdlDemodulator(ServiceDemodulator, DialFrequencyReceiver):
     def __init__(self, service: bool = False):
         self.sampleRate = 12000
diff --git a/htdocs/css/openwebrx.css b/htdocs/css/openwebrx.css
index 2a094b25..72a72b67 100644
--- a/htdocs/css/openwebrx.css
+++ b/htdocs/css/openwebrx.css
@@ -1457,7 +1457,8 @@ img.openwebrx-mirror-img
 #openwebrx-panel-digimodes[data-mode="sstv"]    #openwebrx-digimode-select-channel,
 #openwebrx-panel-digimodes[data-mode="fax"]     #openwebrx-digimode-select-channel,
 #openwebrx-panel-digimodes[data-mode="ism"]     #openwebrx-digimode-select-channel,
-#openwebrx-panel-digimodes[data-mode="selcall"] #openwebrx-digimode-select-channel
+#openwebrx-panel-digimodes[data-mode="selcall"] #openwebrx-digimode-select-channel,
+#openwebrx-panel-digimodes[data-mode="zvei"]    #openwebrx-digimode-select-channel
 {
     display: none;
 }
diff --git a/owrx/dsp.py b/owrx/dsp.py
index a0aa6faa..07f3b174 100644
--- a/owrx/dsp.py
+++ b/owrx/dsp.py
@@ -622,6 +622,9 @@ class DspManager(SdrSourceEventClient, ClientDemodulatorSecondaryDspEventClient)
         elif mod == "selcall":
             from csdr.chain.toolbox import SelCallDemodulator
             return SelCallDemodulator()
+        elif mod == "zvei":
+            from csdr.chain.toolbox import ZveiDemodulator
+            return ZveiDemodulator()
         elif mod == "bpsk31":
             from csdr.chain.digimodes import PskDemodulator
             return PskDemodulator(31.25)
diff --git a/owrx/modes.py b/owrx/modes.py
index f599ed24..8cf149c7 100644
--- a/owrx/modes.py
+++ b/owrx/modes.py
@@ -187,6 +187,13 @@ class Modes(object):
             requirements=["selcall"],
             squelch=True
         ),
+        DigitalMode(
+            "zvei",
+            "Zvei",
+            underlying=["nfm"],
+            requirements=["selcall"],
+            squelch=True
+        ),
         DigitalMode(
             "ism",
             "ISM",