diff --git a/pkg/kamailio/obs/README b/pkg/kamailio/obs/README
deleted file mode 100644
index aa3ce92746d..00000000000
--- a/pkg/kamailio/obs/README
+++ /dev/null
@@ -1,16 +0,0 @@
-# RPM Specs For OpenSuse Build Service (OBS) #
-
-Here are the RPM packaging specs for openSUSE Build Service:
-
-  * https://build.opensuse.org/
-
-It builds RPM packages for following distributions:
-
-  * CentOS 6 and 7
-  * RHEL 6 and 7
-  * Fedora 25 and 26
-  * openSUSE 42.2 and 42.3
-
-Kamailio's RPMs bulding projects for various versions can be found at:
-
-  * https://build.opensuse.org/project/subprojects/home:kamailio
diff --git a/pkg/kamailio/obs/README.md b/pkg/kamailio/obs/README.md
new file mode 100644
index 00000000000..193139e77ec
--- /dev/null
+++ b/pkg/kamailio/obs/README.md
@@ -0,0 +1,35 @@
+# RPM Specs
+
+##  For OpenSuse Build Service (OBS)
+
+Here are the RPM packaging specs for openSUSE Build Service:
+
+ * https://build.opensuse.org/
+
+It builds RPM packages for following distributions:
+
+* CentOS 6 and 7
+* RHEL 6 and 7
+* Fedora 25 and 26
+* openSUSE 42.2 and 42.3
+
+Kamailio's RPMs bulding projects for various versions can be found at:
+
+* https://build.opensuse.org/project/subprojects/home:kamailio
+  
+## For local build using mock
+
+    # prepare source tarball from repo
+	cd kamailio/
+	mkdir -p ../rpmbuild/SOURCES ../rpmbuild/SPECS
+	./pkg/kamailio/scripts/git-archive-all.sh kamailio-5.8.0 ../rpmbuild/SOURCES/kamailio-5.8.0_src
+	# prepare src.rpm with version/release: replace MYVER/MYREL below
+	cp pkg/kamailio/obs/kamailio.spec ../rpmbuild/SPECS/
+	sed -i -e s'/^%define ver.*/%define ver MYVER/' -e s'/^%define rel.*/%define rel MYREL/' ../rpmbuild/SPECS/kamailio.spec
+	rpmbuild -bs --define "_topdir $PWD/../rpmbuild" ../rpmbuild/SPECS/kamailio.spec
+	
+	# build for EL8/9
+	mock -r pkg/kamailio/obs/kamailio-8-x86_64.cfg ../rpmbuild/SRPMS/*src.rpm
+	mock -r pkg/kamailio/obs/kamailio-9-x86_64.cfg ../rpmbuild/SRPMS/*src.rpm
+
+
diff --git a/pkg/kamailio/obs/kamailio-8-x86_64.cfg b/pkg/kamailio/obs/kamailio-8-x86_64.cfg
new file mode 100644
index 00000000000..29dfdfb1945
--- /dev/null
+++ b/pkg/kamailio/obs/kamailio-8-x86_64.cfg
@@ -0,0 +1,19 @@
+include('almalinux-8-x86_64.cfg')
+include('templates/epel-8.tpl')
+
+config_opts['root'] = "kamailio-8-{{ target_arch }}"
+config_opts['description'] = 'Kamailio- AlmaLinux 8 + EPEL'
+
+config_opts['dnf.conf'] += """
+# you must copy the kamailio RPM signing key to the host as
+# /etc/pki/mock/kamailio-rpm-pub.key
+# curl https://rpm.kamailio.org/rpm-pub.key | sudo tee /etc/pki/mock/kamailio-rpm-pub.key
+
+[kamailio]
+name=Support packages for kamailio
+baseurl=http://rpm.kamailio.org/centos/$releasever/master/master/$basearch/
+gpgkey=file:///etc/pki/mock/kamailio-rpm-pub.key
+"""
+
+# since EL9 the chroots don't include C/C++ development tools
+config_opts['chroot_additional_packages'] = "gcc gcc-c++ make GeoIP-devel autoconf automake libtool"
diff --git a/pkg/kamailio/obs/kamailio-9-x86_64.cfg b/pkg/kamailio/obs/kamailio-9-x86_64.cfg
new file mode 100644
index 00000000000..2c78b5f7e63
--- /dev/null
+++ b/pkg/kamailio/obs/kamailio-9-x86_64.cfg
@@ -0,0 +1,19 @@
+include('almalinux-9-x86_64.cfg')
+include('templates/epel-9.tpl')
+
+config_opts['root'] = "kamailio-9-{{ target_arch }}"
+config_opts['description'] = 'Kamailio- AlmaLinux 9 + EPEL'
+
+config_opts['dnf.conf'] += """
+# you must copy the kamailio RPM signing key to the host as
+# /etc/pki/mock/kamailio-rpm-pub.key
+# curl https://rpm.kamailio.org/rpm-pub.key | sudo tee /etc/pki/mock/kamailio-rpm-pub.key
+
+[kamailio]
+name=Support packages for kamailio
+baseurl=http://rpm.kamailio.org/centos/$releasever/master/master/$basearch/
+gpgkey=file:///etc/pki/mock/kamailio-rpm-pub.key
+"""
+
+# since EL9 the chroots don't include C/C++ development tools
+config_opts['chroot_additional_packages'] = "gcc gcc-c++ make GeoIP-devel autoconf automake libtool"
diff --git a/pkg/kamailio/scripts/create-src-rpm.sh b/pkg/kamailio/scripts/create-src-rpm.sh
new file mode 100755
index 00000000000..ebe792a22bb
--- /dev/null
+++ b/pkg/kamailio/scripts/create-src-rpm.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+#
+
+usage() {
+    echo Usage: create-src-rpm.sh '<version>' '<release>'
+}
+
+# creates a src.rpm for mock
+VER=$1
+REL=$2
+[[ -n $VER ]] || { echo "Version not specified"; usage; exit 1; }
+[[ -n $REL ]] || { echo "Release not specified"; usage; exit 2; }
+
+git submodule update --init
+
+TMP=$(date +"%s")
+RPMBUILD=rpmbuild.${TMP}
+
+rm -rf $RPMBUILD/*
+mkdir -p $RPMBUILD/{SRPMS,SPECS,SOURCES}
+./pkg/kamailio/scripts/git-archive-all.sh kamailio-${VER} $RPMBUILD/SOURCES/kamailio-${VER}_src
+
+# prepare src.rpm with version/release
+cp pkg/kamailio/obs/kamailio.spec $RPMBUILD/SPECS/
+sed -i -e s"/^%define ver.*/%define ver ${VER}/" -e s"/^%define rel.*/%define rel ${REL}/" ${RPMBUILD}/SPECS/kamailio.spec
+
+rm -f ${RPMBUILD}/SRPMS/*.src.rpm
+rpmbuild -bs --define "_topdir $PWD/$RPMBUILD" $RPMBUILD/SPECS/kamailio.spec
+
+echo "src.rpm is created in $RPMBUILD/SRPMS"
+echo "To build:"
+echo Run: mock -r pkg/kamailio/obs/kamailio-8-x86_64.cfg $RPMBUILD/SRPMS/*src.rpm
+echo Run: mock -r pkg/kamailio/obs/kamailio-9-x86_64.cfg $RPMBUILD/SRPMS/*src.rpm
+
+
+exit 0
+
diff --git a/pkg/kamailio/scripts/git-archive-all.sh b/pkg/kamailio/scripts/git-archive-all.sh
new file mode 100755
index 00000000000..4c85ca83cc4
--- /dev/null
+++ b/pkg/kamailio/scripts/git-archive-all.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# packaging script to include submodules
+# modified from: https://gist.github.com/arteymix/03702e3eb05c2c161a86b49d4626d21f
+
+usage() {
+    echo Usage:  pkg/kamailio/scripts/git-archive-all.sh kamailio-5.8.0 ../output/kamailio-5.8.0_src
+}
+
+if [ -z $1 ]; then
+    echo "You must specify a prefix name."
+    usage
+    exit 1
+fi
+
+if [ -z $2 ]; then
+    echo "You must specify a super-archive name."
+    usage
+    exit 1
+fi
+
+git archive --prefix "$1/" -o "$2.tar" HEAD
+git submodule foreach --recursive "git archive --prefix=$1/\$sm_path/ --output=\$sha1.tar HEAD && tar --concatenate --file=$(pwd)/$2.tar \$sha1.tar && rm \$sha1.tar"
+
+gzip "$2.tar"