diff --git a/pjlib/include/pj/config_site_sample.h b/pjlib/include/pj/config_site_sample.h
index fde0b9d..1e784c0 100644
--- a/pjlib/include/pj/config_site_sample.h
+++ b/pjlib/include/pj/config_site_sample.h
@@ -294,6 +294,69 @@
 
 #endif
 
+/*
+ * iPhone sample settings.
+ */
+#if PJ_CONFIG_IPHONE
+    /*
+     * PJLIB settings.
+     */
+
+    /* Disable floating point support */
+    #define PJ_HAS_FLOATING_POINT		0
+
+    /* Misc PJLIB setting */
+    #define PJ_MAXPATH				80
+
+    /*
+     * PJMEDIA settings
+     */
+
+    /* We have our own native CoreAudio backend */
+    #define PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO	0
+    #define PJMEDIA_AUDIO_DEV_HAS_WMME		0
+    #define PJMEDIA_AUDIO_DEV_HAS_COREAUDIO	1
+
+    /* The CoreAudio backend has built-in echo canceller! */
+    #define PJMEDIA_HAS_SPEEX_AEC    0
+
+    /* Disable some codecs */
+    #define PJMEDIA_HAS_L16_CODEC		0
+    #define PJMEDIA_HAS_ILBC_CODEC		0
+    #define PJMEDIA_HAS_G722_CODEC		0
+
+    /* Fine tune Speex's default settings for best performance/quality */
+    #define PJMEDIA_CODEC_SPEEX_DEFAULT_QUALITY	5
+
+    /*
+     * PJSIP settings.
+     */
+
+    /* Increase allowable packet size, just in case */
+    #define PJSIP_MAX_PKT_LEN			2000
+
+    /*
+     * PJSUA settings.
+     */
+
+    /* Default codec quality, previously was set to 5, however it is now
+     * set to 4 to make sure pjsua instantiates resampler with small filter.
+     */
+    #define PJSUA_DEFAULT_CODEC_QUALITY		4
+
+    /* Set maximum number of dialog/transaction/calls to minimum */
+    #define PJSIP_MAX_TSX_COUNT 		31
+    #define PJSIP_MAX_DIALOG_COUNT 		31
+    #define PJSUA_MAX_CALLS			4
+
+    /* Other pjsua settings */
+    #define PJSUA_MAX_ACC			4
+    #define PJSUA_MAX_PLAYERS			4
+    #define PJSUA_MAX_RECORDERS			4
+    #define PJSUA_MAX_CONF_PORTS		(PJSUA_MAX_CALLS+2*PJSUA_MAX_PLAYERS)
+    #define PJSUA_MAX_BUDDIES			32
+
+#endif
 
 /*
  * Minimum size