diff --git a/Dockerfile b/Dockerfile
index c67eaab..9a47de0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,9 +15,30 @@ RUN cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/compiled/ /src/
 RUN cmake --build . ${MAKEOPTS}
 RUN make install
 
+FROM base AS ntgcalls-build
+ARG MAKEOPTS
+# CMake >= 3.27 required; bookworm ships 3.25
+ARG CMAKE_VERSION=3.31.6
+RUN curl -fsSL https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-$(uname -m).tar.gz \
+    | tar xz -C /usr/local --strip-components=1
+RUN apt-get install -y libasound2-dev libpulse-dev
+COPY ntgcalls/ /ntgcalls-src/
+WORKDIR /ntgcalls-build/
+RUN cmake -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_TOOLCHAIN_FILE=/ntgcalls-src/cmake/Toolchain.cmake \
+    -DPython_EXECUTABLE=$(which python3) \
+    -DSTATIC_BUILD=ON \
+    /ntgcalls-src/
+RUN cmake --build . ${MAKEOPTS}
+
 FROM base AS cache
 ARG VERSION
 COPY --from=tdlib /compiled/ /usr/local/
+COPY --from=ntgcalls-build /ntgcalls-src/static-output/lib/libntgcalls.a /usr/local/lib/
+COPY --from=ntgcalls-build /ntgcalls-src/static-output/include/ /usr/local/include/
+COPY docker/resolv_shim.c /tmp/resolv_shim.c
+RUN gcc -c -o /tmp/resolv_shim.o /tmp/resolv_shim.c && \
+    ar rcs /usr/local/lib/libresolv_shim.a /tmp/resolv_shim.o
 COPY ./ /src
 RUN git -C /src checkout "${VERSION}"
 RUN git -C /src submodule update --init
@@ -26,6 +47,9 @@ RUN go get
 
 FROM cache AS build
 ARG MAKEOPTS
+ENV CGO_ENABLED=1
+ENV CGO_CFLAGS="-I/usr/local/include"
+ENV CGO_LDFLAGS="-L/usr/local/lib -lntgcalls -lresolv_shim -lstdc++ -lm -ldl -lrt -lpthread -lz -lresolv"
 WORKDIR /src
 RUN make ${MAKEOPTS}
 
diff --git a/Makefile b/Makefile
index 4db1e45..ea63906 100644
--- a/Makefile
+++ b/Makefile
@@ -5,8 +5,14 @@ TD_COMMIT := "5bbfc1cf5dab94f82e02f3430ded7241d4653551"
 VERSION := "v1.12.8"
 MAKEOPTS := "-j4"
 
+NTG_LIB_DIR ?= /usr/local/lib
+NTG_INC_DIR ?= /usr/local/include
+
 all:
 	mkdir -p release
+	CGO_ENABLED=1 \
+	CGO_CFLAGS="-I$(NTG_INC_DIR)" \
+	CGO_LDFLAGS="-L$(NTG_LIB_DIR) -lntgcalls -lresolv_shim -lstdc++ -lm -ldl -lrt -lpthread -lz -lresolv" \
 	go build -ldflags "-X main.commit=${COMMIT}" -o release/telegabber
 
 test:
diff --git a/docker/resolv_shim.c b/docker/resolv_shim.c
new file mode 100644
index 0000000..8ca302f
--- /dev/null
+++ b/docker/resolv_shim.c
@@ -0,0 +1,22 @@
+// resolv_shim.c — Wrappers for glibc-internal resolver symbols.
+//
+// ntgcalls' CMake (cmake/FindGLib.cmake) downloads a pre-built static glib
+// from pytgcalls/glib GitHub releases.  That binary was compiled on an older
+// glibc (manylinux2014 / CentOS 7) where __dn_expand and __res_nquery were
+// linkable symbols.  On bookworm's glibc 2.36 they are no longer exposed to
+// the linker — only the public POSIX names (dn_expand, res_nquery) are.
+//
+// Since we don't control the glib build (it's downloaded, not compiled by us),
+// the simplest fix is to forward the internal names to the public ones.
+#include <resolv.h>
+#include <arpa/nameser.h>
+
+int __dn_expand(const unsigned char *msg, const unsigned char *eom,
+                const unsigned char *src, char *dst, int dstsiz) {
+    return dn_expand(msg, eom, src, dst, dstsiz);
+}
+
+int __res_nquery(res_state statp, const char *name, int class, int type,
+                 unsigned char *answer, int anslen) {
+    return res_nquery(statp, name, class, type, answer, anslen);
+}
diff --git a/go.mod b/go.mod
index cca0f28..837a02a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module dev.narayana.im/narayana/telegabber
 
-go 1.24
+go 1.24.2
 
 require (
 	github.com/dgraph-io/badger/v4 v4.1.0
@@ -12,10 +12,19 @@ require (
 	github.com/zelenin/go-tdlib v0.5.2
 	gopkg.in/yaml.v2 v2.2.4
 	gosrc.io/xmpp v0.5.2-0.20211214110136-5f99e1cd06e1
+	gotgcalls v0.0.0-00010101000000-000000000000
 )
 
 require (
+	github.com/Laky-64/gologging v1.1.0 // indirect
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/charmbracelet/colorprofile v0.3.2 // indirect
+	github.com/charmbracelet/lipgloss v1.1.0 // indirect
+	github.com/charmbracelet/x/ansi v0.10.1 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.13 // indirect
+	github.com/charmbracelet/x/term v0.2.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.2.0 // indirect
 	github.com/dgraph-io/ristretto v0.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
@@ -26,9 +35,16 @@ require (
 	github.com/google/flatbuffers v1.12.1 // indirect
 	github.com/klauspost/compress v1.12.3 // indirect
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	go.opencensus.io v0.22.5 // indirect
-	golang.org/x/net v0.7.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/net v0.44.0 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/term v0.35.0 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	nhooyr.io/websocket v1.6.5 // indirect
 )
diff --git a/go.sum b/go.sum
index ef244b7..a257e03 100644
--- a/go.sum
+++ b/go.sum
@@ -4,10 +4,24 @@ dev.narayana.im/narayana/go-tdlib v0.0.0-20240124222245-b4c12addb061/go.mod h1:X
 dev.narayana.im/narayana/go-xmpp v0.0.0-20240512132113-6725c3862314 h1:29/NjOGOUDceO73Hk4Nj4uVa1je8MULJlsDSvKxSN/k=
 dev.narayana.im/narayana/go-xmpp v0.0.0-20240512132113-6725c3862314/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Laky-64/gologging v1.1.0 h1:iV/VgoIbImLrI3EPssOzzoyv1OQrp6t5RtDQTKzUes8=
+github.com/Laky-64/gologging v1.1.0/go.mod h1:Ody93tsM0OZUAsWApkfb3rg35fAvyZDAx07kNH13DhI=
 github.com/agnivade/wasmbrowsertest v0.3.1/go.mod h1:zQt6ZTdl338xxRaMW395qccVE2eQm0SjC/SDz0mPWQI=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/charmbracelet/colorprofile v0.3.2 h1:9J27WdztfJQVAQKX2WOlSSRB+5gaKqqITmrvb1uTIiI=
+github.com/charmbracelet/colorprofile v0.3.2/go.mod h1:mTD5XzNeWHj8oqHb+S1bssQb7vIHbepiebQ2kPKVKbI=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.10.1 h1:rL3Koar5XvX0pHGfovN03f5cxLbCF2YvLeyz7D2jVDQ=
+github.com/charmbracelet/x/ansi v0.10.1/go.mod h1:3RQDQ6lDnROptfpWuUVIUG64bD2g2BgntdxH0Ya5TeE=
+github.com/charmbracelet/x/cellbuf v0.0.13 h1:/KBBKHuVRbq1lYx5BzEHBAFBP8VcQzJejZ/IA3iR28k=
+github.com/charmbracelet/x/cellbuf v0.0.13/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
+github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ=
+github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
 github.com/chromedp/cdproto v0.0.0-20190614062957-d6d2f92b486d/go.mod h1:S8mB5wY3vV+vRIzf39xDXsw3XKYewW9X6rW2aEmkrSw=
 github.com/chromedp/cdproto v0.0.0-20190621002710-8cbd498dd7a0/go.mod h1:S8mB5wY3vV+vRIzf39xDXsw3XKYewW9X6rW2aEmkrSw=
 github.com/chromedp/cdproto v0.0.0-20190812224334-39ef923dcb8d/go.mod h1:0YChpVzuLJC5CPr+x3xkHN6Z8KOSXjNbL7qV8Wc4GW0=
@@ -15,6 +29,8 @@ github.com/chromedp/cdproto v0.0.0-20190926234355-1b4886c6fad6/go.mod h1:0YChpVz
 github.com/chromedp/chromedp v0.3.1-0.20190619195644-fd957a4d2901/go.mod h1:mJdvfrVn594N9tfiPecUidF6W5jPRKHymqHfzbobPsM=
 github.com/chromedp/chromedp v0.4.0/go.mod h1:DC3QUn4mJ24dwjcaGQLoZrhm4X/uPHZ6spDbS2uFhm4=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/clipperhouse/uax29/v2 v2.2.0 h1:ChwIKnQN3kcZteTXMgb1wztSgaU+ZemkgWdohwgs8tY=
+github.com/clipperhouse/uax29/v2 v2.2.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -74,6 +90,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag=
+github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mailru/easyjson v0.0.0-20190403194419-1ea4449da983/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190614124828-94de47d64c63/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190620125010-da37f6c1e481/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
@@ -84,6 +102,12 @@ github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVc
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw=
+github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
+github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
+github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
@@ -93,6 +117,8 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/santhosh-tekuri/jsonschema v1.2.4 h1:hNhW8e7t+H1vgY+1QeEQpveR6D4+OwKPXCfD2aieJis=
 github.com/santhosh-tekuri/jsonschema v1.2.4/go.mod h1:TEAUOeZSmIxTTuHatJzrvARHiuO9LYd+cIxzgEHCQI4=
 github.com/sirupsen/logrus v1.0.5/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
@@ -109,6 +135,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/twitchyliquid64/golang-asm v0.0.0-20190126203739-365674df15fc/go.mod h1:NoCfSFWosfqMqmmD7hApkirIK9ozpHjxRnRxs1l413A=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.coder.com/go-tools v0.0.0-20190317003359-0c6a35b74a16/go.mod h1:iKV5yK9t+J5nG9O3uF6KYdPEz3dyfMyB15MN1rbQ8Qw=
@@ -123,6 +151,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561 h1:MDc5xs78ZrZr3HMQugiXOAkSZtfTpbJLDr/lwfgO53E=
+golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561/go.mod h1:cyybsKvd6eL0RnXn6p/Grxp8F5bW7iYuBgsNCOHpMYE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
@@ -139,8 +169,8 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
+golang.org/x/net v0.44.0 h1:evd8IRDyfNBMBTTY5XRF1vaZlD+EmWx6x8PkhR04H/I=
+golang.org/x/net v0.44.0/go.mod h1:ECOoLqd5U3Lhyeyo/QDCEVQ4sNgYsqvCZ722XogGieY=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -162,8 +192,11 @@ golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190927073244-c990c680b611/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20221010170243-090e33056c14/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
+golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.35.0 h1:bZBVKBudEyhRcajGcNc3jIfWPqV4y/Kt2XcoigOWtDQ=
+golang.org/x/term v0.35.0/go.mod h1:TPGtkTLesOwf2DE8CgVYiZinHAOuy5AYUYT1lENIZnA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ=
diff --git a/staging.Dockerfile b/staging.Dockerfile
index 67731c0..c17ac22 100644
--- a/staging.Dockerfile
+++ b/staging.Dockerfile
@@ -19,9 +19,32 @@ WORKDIR /build/
 RUN cmake --build . ${MAKEOPTS}
 RUN make install
 
+FROM base AS ntgcalls-build
+ARG MAKEOPTS
+# CMake >= 3.27 required; bookworm ships 3.25
+ARG CMAKE_VERSION=3.31.6
+RUN curl -fsSL https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-$(uname -m).tar.gz \
+    | tar xz -C /usr/local --strip-components=1
+RUN apt-get install -y libasound2-dev libpulse-dev
+# Note: ntgcalls submodule must be initialized on host before docker build
+RUN --mount=type=bind,source=./ntgcalls,target=/ntgcalls-src,rw \
+    mkdir -p /ntgcalls-build && cd /ntgcalls-build && \
+    cmake -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_TOOLCHAIN_FILE=/ntgcalls-src/cmake/Toolchain.cmake \
+        -DPython_EXECUTABLE=$(which python3) \
+        -DSTATIC_BUILD=ON \
+        /ntgcalls-src/ && \
+    cmake --build . ${MAKEOPTS} && \
+    cp -r /ntgcalls-src/static-output /ntgcalls-output
+
 FROM base AS cache
 ARG VERSION
 COPY --from=tdlib /compiled/ /usr/local/
+COPY --from=ntgcalls-build /ntgcalls-output/lib/libntgcalls.a /usr/local/lib/
+COPY --from=ntgcalls-build /ntgcalls-output/include/ /usr/local/include/
+RUN --mount=type=bind,source=./docker/resolv_shim.c,target=/tmp/resolv_shim.c \
+    gcc -c -o /tmp/resolv_shim.o /tmp/resolv_shim.c && \
+    ar rcs /usr/local/lib/libresolv_shim.a /tmp/resolv_shim.o
 WORKDIR /src
 RUN go env -w GOCACHE=/go-cache
 RUN go env -w GOMODCACHE=/gomod-cache
@@ -32,6 +55,9 @@ RUN --mount=type=cache,target=/gomod-cache \
 
 FROM cache AS build
 ARG MAKEOPTS
+ENV CGO_ENABLED=1
+ENV CGO_CFLAGS="-I/usr/local/include"
+ENV CGO_LDFLAGS="-L/usr/local/lib -lntgcalls -lresolv_shim -lstdc++ -lm -ldl -lrt -lpthread -lz -lresolv"
 WORKDIR /src
 RUN --mount=type=bind,source=./,target=/src,rw \
     --mount=type=cache,target=/go-cache \
diff --git a/telegabber.go b/telegabber.go
index 8bd46f5..1714e88 100644
--- a/telegabber.go
+++ b/telegabber.go
@@ -10,6 +10,7 @@ import (
 
 	"dev.narayana.im/narayana/telegabber/config"
 	"dev.narayana.im/narayana/telegabber/xmpp"
+	"gotgcalls/ntgcalls"
 
 	log "github.com/sirupsen/logrus"
 	"github.com/zelenin/go-tdlib/client"
@@ -67,6 +68,7 @@ func main() {
 	SetLogrusLevel(config.XMPP.Loglevel)
 
 	log.Infof("Starting telegabber version %v", version)
+	log.Infof("ntgcalls version %v", ntgcalls.Version())
 
 	sm, component, err = xmpp.NewComponent(config.XMPP, config.Telegram, *idsPath, version)
 	if err != nil {