diff --git a/recipes-isdn/libgsm/libgsm.inc b/recipes-isdn/libgsm/libgsm.inc
new file mode 100644
index 0000000..aa0386c
--- /dev/null
+++ b/recipes-isdn/libgsm/libgsm.inc
@@ -0,0 +1,34 @@
+DESCRIPTION = "GSM Audio Library"
+SECTION = "libs"
+PRIORITY = "optional"
+LICENSE = "libgsm"
+LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=fc1372895b173aaf543a122db37e04f5"
+
+INC_PR = "r2"
+
+SRC_URI = "http://www.quut.com/gsm/gsm-${PV}.tar.gz \
+	   file://01_makefile.patch \
+           file://02_cplusplus.patch \
+           file://03_config.patch \
+           file://04_includes.patch \
+           file://05_compiler_warnings.patch \
+	  "
+
+CFLAGS += "-c -g -fPIC -Wall -D_GNU_SOURCE -D_REENTRANT -DNeedFunctionPrototypes=1 -DWAV49 -I./inc"
+
+PARALLEL_MAKE = ""
+
+do_compile() {
+	unset LD
+	oe_runmake CCFLAGS="${CFLAGS}"
+}
+
+do_install() {
+	oe_libinstall -a -C lib libgsm ${D}${libdir}
+        oe_libinstall -so -C lib libgsm ${D}${libdir}
+        install -d ${D}${includedir}/gsm
+        install -m 0644 ${S}/inc/gsm.h ${D}${includedir}/gsm/
+	cd ${D}${includedir}
+	ln -s gsm/gsm.h gsm.h
+}
+