diff --git a/i18n/en-US.json b/i18n/en-US.json
index 4536dd3..9f16470 100644
--- a/i18n/en-US.json
+++ b/i18n/en-US.json
@@ -841,7 +841,7 @@
 			"title": "Company Caller ID",
 			"headline": "Select a Caller ID Number for the Account",
 			"numberLabel": "Company Caller ID number",
-			"numberHelp": "This number will appear as your Caller ID when you make outbound calls.",
+			"numberHelp": "This number will appear as your Caller ID when you make outbound calls. Needs to be shorter than 15 characters (including spaces).",
 			"nameLabel": "Company Caller ID name",
 			"nameHelp": "This name will appear as your Caller ID when you make outbound calls.",
 			"emergencyLabel": "Company Emergency (E911) Address",
diff --git a/i18n/fr-FR.json b/i18n/fr-FR.json
index 8214894..423d67b 100644
--- a/i18n/fr-FR.json
+++ b/i18n/fr-FR.json
@@ -793,7 +793,7 @@
 			"title": "Caller ID d'entreprise",
 			"headline": "Sélectionner un numéro de Caller ID Number pour ce compte",
 			"numberLabel": "Numéro de Caller ID de l'entreprise",
-			"numberHelp": "Ce numéro sera affiché lors des appels sortants.",
+			"numberHelp": "Ce numéro sera affiché lors des appels sortants. 15 caractères maximum (espaces inclus).",
 			"nameLabel": "Nom du Caller-ID de l'entreprise",
 			"nameHelp": "Ce nom sera affiché si possible lors des appels sortants.",
 			"emergencyLabel": "Adresse d'urgence de l'entreprise",