diff --git a/dev-libs/liblinphone/Manifest b/dev-libs/liblinphone/Manifest
new file mode 100644
index 0000000..f15bc8f
--- /dev/null
+++ b/dev-libs/liblinphone/Manifest
@@ -0,0 +1 @@
+DIST liblinphone-5.1.3.tar.gz 22720534 BLAKE2B a365aa97efd2fc246dc29c412787ecd728131a31fea990a448131332d9fcf9a77c6ad7d6f421609d8441049f3a16600f8f8f0920a60cb6ccda0aaa14620a0548 SHA512 e0df5d9c47ccc2cf1cf2b8fff171f6305240f6f64f5dce42d62792ef7238b1a2c5178a2f4257f4501c417941cc67a007658e473864e2b5ea4ebc2a8e28ff174e
diff --git a/dev-libs/liblinphone/files/liblinphone-5.1.3-jsoncpp-cmake.patch b/dev-libs/liblinphone/files/liblinphone-5.1.3-jsoncpp-cmake.patch
new file mode 100644
index 0000000..57b9415
--- /dev/null
+++ b/dev-libs/liblinphone/files/liblinphone-5.1.3-jsoncpp-cmake.patch
@@ -0,0 +1,61 @@
+diff --git a/cmake/Findjsoncpp.cmake b/cmake/Findjsoncpp.cmake
+new file mode 100644
+index 0000000..9d16f2a
+--- /dev/null
++++ b/cmake/Findjsoncpp.cmake
+@@ -0,0 +1,55 @@
++# -*- cmake -*-
++
++# - Find JSONCpp
++# Find the JSONCpp includes and library
++# This module defines
++#  JSONCPP_INCLUDE_DIR, where to find json.h, etc.
++#  JSONCPP_LIBRARIES, the libraries needed to use jsoncpp.
++#  JSONCPP_FOUND, If false, do not try to use jsoncpp.
++#  also defined, but not for general use are
++#  JSONCPP_LIBRARY, where to find the jsoncpp library.
++
++FIND_PATH(JSONCPP_INCLUDE_DIR jsoncpp/json/json.h
++/usr/local/include
++/usr/include
++)
++
++# Get the GCC compiler version
++EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
++            ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
++            OUTPUT_VARIABLE _gcc_COMPILER_VERSION
++            OUTPUT_STRIP_TRAILING_WHITESPACE
++            )
++
++SET(JSONCPP_NAMES ${JSONCPP_NAMES} libjsoncpp.so)
++FIND_LIBRARY(JSONCPP_LIBRARY
++  NAMES ${JSONCPP_NAMES}
++  PATHS /usr/lib /usr/local/lib
++  )
++
++IF (JSONCPP_LIBRARY AND JSONCPP_INCLUDE_DIR)
++    SET(JSONCPP_LIBRARIES ${JSONCPP_LIBRARY})
++    SET(JSONCPP_FOUND "YES")
++ELSE (JSONCPP_LIBRARY AND JSONCPP_INCLUDE_DIR)
++  SET(JSONCPP_FOUND "NO")
++ENDIF (JSONCPP_LIBRARY AND JSONCPP_INCLUDE_DIR)
++
++
++IF (JSONCPP_FOUND)
++   IF (NOT JSONCPP_FIND_QUIETLY)
++      MESSAGE(STATUS "Found JSONCpp: ${JSONCPP_LIBRARIES}")
++   ENDIF (NOT JSONCPP_FIND_QUIETLY)
++ELSE (JSONCPP_FOUND)
++   IF (JSONCPP_FIND_REQUIRED)
++      MESSAGE(FATAL_ERROR "Could not find JSONCpp library")
++   ENDIF (JSONCPP_FIND_REQUIRED)
++ENDIF (JSONCPP_FOUND)
++
++# Deprecated declarations.
++SET (NATIVE_JSONCPP_INCLUDE_PATH ${JSONCPP_INCLUDE_DIR} )
++GET_FILENAME_COMPONENT (NATIVE_JSONCPP_LIB_PATH ${JSONCPP_LIBRARY} PATH)
++
++MARK_AS_ADVANCED(
++  JSONCPP_LIBRARY
++  JSONCPP_INCLUDE_DIR
++  )
diff --git a/dev-libs/liblinphone/liblinphone-5.1.3.ebuild b/dev-libs/liblinphone/liblinphone-5.1.3.ebuild
new file mode 100644
index 0000000..b0ff873
--- /dev/null
+++ b/dev-libs/liblinphone/liblinphone-5.1.3.ebuild
@@ -0,0 +1,86 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..10} )
+
+inherit cmake python-r1
+
+DESCRIPTION="SIP library supporting voice/video calls and text messaging"
+HOMEPAGE="https://gitlab.linphone.org/BC/public/liblinphone"
+SRC_URI="https://gitlab.linphone.org/BC/public/${PN}/-/archive/${PV}/${P}.tar.gz"
+
+LICENSE="GPL-3"
+KEYWORDS="~amd64 ~x86"
+SLOT="0"
+IUSE="debug doc ldap libnotify static-libs test tools"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+RESTRICT="!test? ( test )"
+
+RDEPEND="dev-cpp/belr
+	dev-cpp/xsd
+	dev-db/sqlite:3
+	dev-db/soci
+	dev-libs/belcard
+	dev-libs/belle-sip
+	dev-libs/jsoncpp:0=
+	dev-libs/libxml2:2
+	dev-libs/lime
+	dev-libs/xerces-c
+	net-libs/bctoolbox[test?]
+	net-libs/ortp
+	media-libs/mediastreamer2[zrtp,srtp,jpeg]
+	sys-libs/zlib:0
+	virtual/libiconv
+	virtual/libintl
+	virtual/libudev
+	tools? ( ${PYTHON_DEPS}
+		dev-python/pystache[${PYTHON_USEDEP}]
+		dev-python/six[${PYTHON_USEDEP}] )"
+DEPEND="${RDEPEND}"
+BDEPEND="${PYTHON_DEPS}
+	app-doc/doxygen[dot]
+	dev-python/pystache[${PYTHON_USEDEP}]
+	dev-python/six[${PYTHON_USEDEP}]
+	dev-vcs/git
+	virtual/pkgconfig
+	doc? ( dev-python/sphinx[${PYTHON_USEDEP}] )"
+
+PATCHES=( "${FILESDIR}"/"${P}"-jsoncpp-cmake.patch )
+
+src_prepare() {
+	# QnD fix: incapability to detect jsoncpp
+	sed -i '/json\/json.h/s|<|<jsoncpp/|' src/FlexiAPIClient.{cc,hh} \
+		tester/{flexiapiclient-tester,remote-provisioning-tester}.cpp \
+		|| die "sed failed for FlexiAPIClient"
+	sed -i 's/jsoncpp_object/jsoncpp/' {src,tester}/CMakeLists.txt \
+		|| die "sed failed for src/CMakeLists.txt and tester/CMakeLists.txt"
+
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DENABLE_ASSISTANT=YES
+		-DENABLE_DEBUG_LOGS="$(usex debug)"
+		-DENABLE_DOC="$(usex doc)"
+		-DENABLE_FLEXIAPI=YES
+		-DENABLE_LDAP="$(usex ldap)"
+		-DENABLE_LIME=NO
+		-DENABLE_NOTIFY="$(usex libnotify)"
+		-DENABLE_STATIC="$(usex static-libs)"
+		-DENABLE_TOOLS="$(usex tools)"
+		-DENABLE_UNIT_TESTS="$(usex test)"
+	)
+
+	cmake_src_configure
+}
+
+src_test() {
+	"${S}"_build/tester/liblinphone_tester \
+		--resource-dir "${S}"/tester/ \
+		|| die "tests failed"
+
+	cmake_src_test
+}
diff --git a/dev-libs/liblinphone/metadata.xml b/dev-libs/liblinphone/metadata.xml
new file mode 100644
index 0000000..72384f9
--- /dev/null
+++ b/dev-libs/liblinphone/metadata.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>spiderx@spiderx.dp.ua</email>
+		<name>Vladimir Pavljuchenkov</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>proxy-maint@gentoo.org</email>
+		<name>Proxy Maintainers</name>
+	</maintainer>
+	<longdescription lang="en">
+	A high-level SIP library integrating all calling and instant messaging
+	features into an unified easy-to-use API. It is the cross-platform VoIP
+	library on which the Linphone application is based on, and that anyone
+	can use to add audio and video calls or instant messaging capabilities
+	to an application.
+	</longdescription>
+	<use>
+		<flag name="tools">Build tools</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">BelledonneCommunications/liblinphone</remote-id>
+	</upstream>
+</pkgmetadata>