diff --git a/net/asterisk-13.x/Makefile b/net/asterisk-13.x/Makefile
index 9e4f45d..381d88d 100644
--- a/net/asterisk-13.x/Makefile
+++ b/net/asterisk-13.x/Makefile
@@ -11,7 +11,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=asterisk13
 PKG_VERSION:=13.18.3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=asterisk-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.asterisk.org/pub/telephony/asterisk/releases
diff --git a/net/asterisk-13.x/patches/100-build-reproducibly.patch b/net/asterisk-13.x/patches/100-build-reproducibly.patch
new file mode 100644
index 0000000..23e1f01
--- /dev/null
+++ b/net/asterisk-13.x/patches/100-build-reproducibly.patch
@@ -0,0 +1,28 @@
+--- a/build_tools/make_build_h
++++ b/build_tools/make_build_h
+@@ -5,6 +5,14 @@
+ OS=`uname -s`
+ USER=`id | awk -F")" '{print $1}'| awk -F"(" '{print $2}' | sed 's/\\\\/\\\\\\\\/g'`
+ DATE=`date -u "+%Y-%m-%d %H:%M:%S"`
++if [ -n "${SOURCE_DATE_EPOCH}" ]; then
++	# building reproducibly, faking some data
++	HOSTNAME='buildd.debian.org'
++	KERNEL='unknown'
++	MACHINE='unknown'
++	USER='nobody'
++	DATE=`date -u "+%Y-%m-%d %H:%M:%S" -d @${SOURCE_DATE_EPOCH}`
++fi
+ cat << END
+ /*
+  * build.h
+--- a/Makefile
++++ b/Makefile
+@@ -465,7 +465,7 @@
+ 	@echo "<docs xmlns:xi=\"http://www.w3.org/2001/XInclude\">" >> $@
+ 	@for x in $(MOD_SUBDIRS); do \
+ 		printf "$$x " ; \
+-		for i in `find $$x -name '*.c'`; do \
++		for i in `find $$x -name '*.c' | LC_ALL=C sort`; do \
+ 			$(AWK) -f build_tools/get_documentation $$i >> $@ ; \
+ 		done ; \
+ 	done
diff --git a/net/asterisk-15.x/Makefile b/net/asterisk-15.x/Makefile
index 83afba0..12c261c 100644
--- a/net/asterisk-15.x/Makefile
+++ b/net/asterisk-15.x/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=asterisk15
 PKG_VERSION:=15.1.3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=asterisk-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://downloads.asterisk.org/pub/telephony/asterisk/releases
diff --git a/net/asterisk-15.x/patches/100-build-reproducibly.patch b/net/asterisk-15.x/patches/100-build-reproducibly.patch
new file mode 100644
index 0000000..23e1f01
--- /dev/null
+++ b/net/asterisk-15.x/patches/100-build-reproducibly.patch
@@ -0,0 +1,28 @@
+--- a/build_tools/make_build_h
++++ b/build_tools/make_build_h
+@@ -5,6 +5,14 @@
+ OS=`uname -s`
+ USER=`id | awk -F")" '{print $1}'| awk -F"(" '{print $2}' | sed 's/\\\\/\\\\\\\\/g'`
+ DATE=`date -u "+%Y-%m-%d %H:%M:%S"`
++if [ -n "${SOURCE_DATE_EPOCH}" ]; then
++	# building reproducibly, faking some data
++	HOSTNAME='buildd.debian.org'
++	KERNEL='unknown'
++	MACHINE='unknown'
++	USER='nobody'
++	DATE=`date -u "+%Y-%m-%d %H:%M:%S" -d @${SOURCE_DATE_EPOCH}`
++fi
+ cat << END
+ /*
+  * build.h
+--- a/Makefile
++++ b/Makefile
+@@ -465,7 +465,7 @@
+ 	@echo "<docs xmlns:xi=\"http://www.w3.org/2001/XInclude\">" >> $@
+ 	@for x in $(MOD_SUBDIRS); do \
+ 		printf "$$x " ; \
+-		for i in `find $$x -name '*.c'`; do \
++		for i in `find $$x -name '*.c' | LC_ALL=C sort`; do \
+ 			$(AWK) -f build_tools/get_documentation $$i >> $@ ; \
+ 		done ; \
+ 	done
diff --git a/net/asterisk-chan-sccp/Makefile b/net/asterisk-chan-sccp/Makefile
index 77c776e..7180fb1 100644
--- a/net/asterisk-chan-sccp/Makefile
+++ b/net/asterisk-chan-sccp/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=chan-sccp
 PKG_VERSION:=v4.3.0-20171123
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://github.com/chan-sccp/chan-sccp.git
diff --git a/net/asterisk-chan-sccp/patches/100-reproducible-builds.patch b/net/asterisk-chan-sccp/patches/100-reproducible-builds.patch
new file mode 100644
index 0000000..f10a750
--- /dev/null
+++ b/net/asterisk-chan-sccp/patches/100-reproducible-builds.patch
@@ -0,0 +1,13 @@
+Index: chan-sccp-v4.3.0-20171123/src/chan_sccp.c
+===================================================================
+--- chan-sccp-v4.3.0-20171123.orig/src/chan_sccp.c
++++ chan-sccp-v4.3.0-20171123/src/chan_sccp.c
+@@ -186,7 +186,7 @@ boolean_t sccp_postPBX_load(void)
+ #else
+ 	snprintf(SCCP_REVISIONSTR, sizeof(SCCP_REVISIONSTR), "%s", SCCP_REVISION);
+ #endif
+-	snprintf(SCCP_VERSIONSTR, sizeof(SCCP_VERSIONSTR), "Skinny Client Control Protocol (SCCP). Release: %s %s - %s (built by '%s' on '%s')\n", SCCP_VERSION, SCCP_BRANCH, SCCP_REVISIONSTR, BUILD_USER, BUILD_DATE);
++	snprintf(SCCP_VERSIONSTR, sizeof(SCCP_VERSIONSTR), "Skinny Client Control Protocol (SCCP). Release: %s %s - %s\n", SCCP_VERSION, SCCP_BRANCH, SCCP_REVISIONSTR);
+ 
+ 	GLOB(module_running) = TRUE;
+ 	pbx_rwlock_unlock(&GLOB(lock));