diff -r 8430ee5644c2 -r 5fd115b810d0 data/dictionary.xml
--- a/data/dictionary.xml	Mon Aug 19 17:20:27 2013 +0200
+++ b/data/dictionary.xml	Mon Aug 19 17:30:19 2013 +0200
@@ -2623,8 +2623,17 @@
 	</concept>
 	<concept>
 		<term abbreviation="CID" completeForm="caller ID" language="en"/>
-		<!-- https://en.wikipedia.org/wiki/Caller_ID -->
-		<explanation language="en"><text></text></explanation>
+		<term abbreviation="CLIP" completeForm="calling line identification presentation" language="en"/>
+		<term abbreviation="CLID" completeForm="calling line identification" language="en"/>
+		<term abbreviation="CNID" completeForm="calling number identification" language="en"/>
+		<term abbreviation="CND" completeForm="calling number delivery" language="en"/>
+		<explanation language="en">
+			<text>
+				a service that delivers caller's phone number to the called party's device during ringing;
+				so the called party knows who is calling before answering the phone;
+				this service is common in digital networks like VoIP, GSM or ISDN but can be provided also on analog POTS networks
+			</text>
+		</explanation>
 	</concept>
 	<concept>
 		<term abbreviation="DTMF" completeForm="dual-tone multi-frequency signaling" language="en"/>