diff --git a/configs/extensions.ael.sample b/configs/extensions.ael.sample
index 21680a4dba..25bce30d5d 100644
--- a/configs/extensions.ael.sample
+++ b/configs/extensions.ael.sample
@@ -18,16 +18,24 @@
 // function: ${ENV(VARIABLE)}
 //
 
+// NOTE! NOTE! NOTE!
+// Asterisk by default will load both extensions.conf and extensions.ael files.
+// Upon loading these files the dialplans generated from both with be merged,
+// so you must make sure that you don't have any overlapping contexts or global
+// variables. If you do, then unexpected behavior may result when the data is
+// merged.
+// NOTE! NOTE! NOTE!
+
 globals {
 	CONSOLE="Console/dsp"; 		// Console interface for demo
 	//CONSOLE=DAHDI/1
 	//CONSOLE=Phone/phone0
 	IAXINFO=guest;				// IAXtel username/password
 	//IAXINFO="myuser:mypass";
-	TRUNK="DAHDI/G2";					// Trunk interface
+	OUTBOUND-TRUNK="Zap/g2";		// Trunk interface
 	//
-	// Note the 'G2' in the TRUNK variable above. It specifies which group (defined
-	// in dahdi.conf) to dial, i.e. group 2, and how to choose a channel to use in
+	// Note the 'g2' in the OUTBOUND-TRUNK variable above. It specifies which group (defined
+	// in chan_dahdi.conf) to dial, i.e. group 2, and how to choose a channel to use in
 	// the specified group. The four possible options are:
 	//
 	// g: select the lowest-numbered non-busy DAHDI channel
@@ -39,7 +47,7 @@ globals {
 	// R: use a round-robin search, starting at the next lowest channel than last
 	//    time (aka. descending rotary hunt group).
 	//
-	TRUNKMSD=1;					// MSD digits to strip (usually 1 or 0)
+	OUTBOUND-TRUNKMSD=1;					// MSD digits to strip (usually 1 or 0)
 	//TRUNK=IAX2/user:pass@provider
 };
 
@@ -210,7 +218,7 @@ context ael-trunkint {
 	};
 	_9011. => {
 		&ael-dundi-e164(${EXTEN:4});
-		Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
+		Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
 	};
 };
 
@@ -223,7 +231,7 @@ context ael-trunkld {
 	};
 	_91NXXNXXXXXX => {
 		&ael-dundi-e164(${EXTEN:1});
-		Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
+		Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
 	};
 };
 
@@ -232,7 +240,7 @@ context ael-trunklocal {
 	// Local seven-digit dialing accessed through trunk interface
 	//
 	_9NXXXXXX => {
-		Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
+		Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
 	};
 };
 
@@ -241,10 +249,10 @@ context ael-trunktollfree {
 	// Long distance context accessed through trunk interface
 	//
 	
-	_91800NXXXXXX => Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
-	_91888NXXXXXX => Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
-	_91877NXXXXXX => Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
-	_91866NXXXXXX => Dial(${TRUNK}/${EXTEN:${TRUNKMSD}});
+	_91800NXXXXXX => Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
+	_91888NXXXXXX => Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
+	_91877NXXXXXX => Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
+	_91866NXXXXXX => Dial(${OUTBOUND-TRUNK}/${EXTEN:${OUTBOUND-TRUNKMSD}});
 };
 
 context ael-international {