diff --git a/jni/pjproject-android/Makefile b/jni/pjproject-android/Makefile
new file mode 100644
index 0000000..e33472f
--- /dev/null
+++ b/jni/pjproject-android/Makefile
@@ -0,0 +1,121 @@
+include build.mak
+include build/host-$(HOST_NAME).mak
+-include user.mak
+include version.mak
+
+LIB_DIRS = pjlib/build pjlib-util/build pjnath/build third_party/build pjmedia/build pjsip/build
+DIRS = $(LIB_DIRS) pjsip-apps/build $(EXTRA_DIRS)
+
+ifdef MINSIZE
+MAKE_FLAGS := MINSIZE=1
+endif
+
+all clean dep depend distclean print realclean:
+	for dir in $(DIRS); do \
+		if $(MAKE) $(MAKE_FLAGS) -C $$dir $@; then \
+		    true; \
+		else \
+		    exit 1; \
+		fi; \
+	done
+
+lib:
+	for dir in $(LIB_DIRS); do \
+		if $(MAKE) $(MAKE_FLAGS) -C $$dir all; then \
+		    true; \
+		else \
+		    exit 1; \
+		fi; \
+	done; \
+
+
+.PHONY: lib 
+
+doc:
+	@if test \( ! "$(WWWDIR)" == "" \) -a \( ! -d $(WWWDIR)/pjlib/docs/html \) ; then \
+		echo 'Directory "$(WWWDIR)" does not look like a valid pjsip web directory'; \
+		exit 1; \
+	fi
+	for dir in $(DIRS); do \
+		if $(MAKE) $(MAKE_FLAGS) -C $$dir $@; then \
+		    true; \
+		else \
+		    exit 1; \
+		fi; \
+	done
+	
+LIBS = 	pjlib/lib/libpj-$(TARGET_NAME).a \
+	pjlib-util/lib/libpjlib-util-$(TARGET_NAME).a \
+	pjnath/lib/libpjnath-$(TARGET_NAME).a \
+	pjmedia/lib/libpjmedia-$(TARGET_NAME).a \
+	pjmedia/lib/libpjmedia-audiodev-$(TARGET_NAME).a \
+	pjmedia/lib/libpjmedia-codec-$(TARGET_NAME).a \
+    	pjsip/lib/libpjsip-$(TARGET_NAME).a \
+	pjsip/lib/libpjsip-ua-$(TARGET_NAME).a \
+	pjsip/lib/libpjsip-simple-$(TARGET_NAME).a \
+	pjsip/lib/libpjsua-$(TARGET_NAME).a
+BINS = 	pjsip-apps/bin/pjsua-$(TARGET_NAME)$(HOST_EXE) 
+
+size:
+	@echo -n 'Date: '
+	@date
+	@echo
+	@for lib in $(LIBS); do \
+		echo "$$lib:"; \
+		size -t $$lib | awk '{print $$1 "\t" $$2 "\t" $$3 "\t" $$6}'; \
+		echo; \
+	done
+	@echo
+	@for bin in $(BINS); do \
+		echo "size $$bin:"; \
+		size $$bin; \
+	done
+
+#dos2unix:
+#	for f in `find . | egrep '(mak|h|c|S|s|Makefile)$$'`; do \
+#		dos2unix "$$f" > dos2unix.tmp; \
+#		cp dos2unix.tmp "$$f"; \
+#	done
+#	rm -f dos2unix.tmp
+
+xhdrid:
+	for f in `find . | egrep '\.(h|c|S|s|cpp|hpp)$$'`; do \
+		echo Processing $$f...; \
+		cat $$f | sed 's/.*\$$Author\$$/ */' > /tmp/id; \
+		cp /tmp/id $$f; \
+	done
+
+selftest: pjlib-test pjlib-util-test pjnath-test pjmedia-test pjsip-test pjsua-test
+
+pjlib-test: pjlib/bin/pjlib-test-$(TARGET_NAME)
+	cd pjlib/build && ../bin/pjlib-test-$(TARGET_NAME)
+
+pjlib-util-test: pjlib-util/bin/pjlib-util-test-$(TARGET_NAME)
+	cd pjlib-util/build && ../bin/pjlib-util-test-$(TARGET_NAME)
+
+pjnath-test: pjnath/bin/pjnath-test-$(TARGET_NAME)
+	cd pjnath/build && ../bin/pjnath-test-$(TARGET_NAME)
+
+pjmedia-test: pjmedia/bin/pjmedia-test-$(TARGET_NAME)
+	cd pjmedia/build && ../bin/pjmedia-test-$(TARGET_NAME)
+
+pjsip-test: pjsip/bin/pjsip-test-$(TARGET_NAME)
+	cd pjsip/build && ../bin/pjsip-test-$(TARGET_NAME)
+
+pjsua-test:
+	cd tests/pjsua && python runall.py
+
+prefix = $(ac_prefix)
+
+install:
+	mkdir -p $(DESTDIR)$(prefix)/lib
+	cp -f $(APP_LIB_FILES) $(DESTDIR)$(prefix)/lib/
+	mkdir -p $(DESTDIR)$(prefix)/include
+	for d in pjlib pjlib-util pjnath pjmedia pjsip; do \
+		cp -RLf $$d/include/* $(DESTDIR)$(prefix)/include/; \
+	done
+	mkdir -p $(DESTDIR)$(prefix)/lib/pkgconfig
+	sed -e "s!@PREFIX@!$(DESTDIR)$(prefix)!" libpjproject.pc.in | \
+		sed -e "s/@PJ_VERSION@/$(PJ_VERSION)/" | \
+		sed -e "s!@PJ_LDLIBS@!$(PJ_LDLIBS)!" | \
+		sed -e "s!@PJ_INSTALL_CFLAGS@!$(PJ_INSTALL_CFLAGS)!" > $(DESTDIR)/$(prefix)/lib/pkgconfig/libpjproject.pc