Fix spelling

28 files changed, 56 insertions, 56 deletions

diff --git a/NEWS b/NEWS
index 4cbd600..1e6859d 100644
--- a/NEWS
+++ b/NEWS
@@ -653,7 +653,7 @@ Build improvements
 - Fixed several build problams with KDE include files and
   libraries.
 
-If you already succesfully installed release 0.3.1 then there is
+If you already successfully installed release 0.3.1 then there is
 no need to upgrade to 0.3.2 as there is no new functionality.
 
 16 oct 2005 - Release 0.3.1
diff --git a/src/abstract_dialog.h b/src/abstract_dialog.h
index aec18dc..4119240 100644
--- a/src/abstract_dialog.h
+++ b/src/abstract_dialog.h
@@ -144,7 +144,7 @@ protected:
 	 *
 	 * @param cr [in] The request.
 	 * @param resp [in] The failure response that was received on the request. 
-	 * @param contact [out] Contains on succesful return the contact to which the request is sent.
+	 * @param contact [out] Contains on successful return the contact to which the request is sent.
 	 * @return true, if the request is sent to a next destination.
 	 * @return false, if no next destination exists.
 	 */
diff --git a/src/address_book.h b/src/address_book.h
index 5a54c14..f9fe011 100644
--- a/src/address_book.h
+++ b/src/address_book.h
@@ -89,7 +89,7 @@ public:
 	
 	/**
 	 * Delete an address.
-	 * @return true, if the address was succesfully deleted.
+	 * @return true, if the address was successfully deleted.
 	 * @return false, if the address does not exist.
 	 */
 	bool del_address(const t_address_card &address);
diff --git a/src/auth.h b/src/auth.h
index a4a755c..0accf54 100644
--- a/src/auth.h
+++ b/src/auth.h
@@ -129,7 +129,7 @@ public:
 	 * @param resp [in] The response containing the challenge.
 	 * @return true, if authorization succeeds.
 	 * @return false, if authorization fails.
-	 * @post On succesful authorization, the credentials has been added to
+	 * @post On successful authorization, the credentials has been added to
 	 * the request in the proper header (Authorization or Proxy-Authorization).
 	 */
 	bool authorize(t_user *user_config, t_request *r, t_response *resp);
diff --git a/src/dialog.h b/src/dialog.h
index 7466d22..565c158 100644
--- a/src/dialog.h
+++ b/src/dialog.h
@@ -597,7 +597,7 @@ public:
 	/**
 	 * Redirect INVITE to the next destination.
 	 * @param resp The response on the INVITE.
-	 * @return true, if INIVTE was redirected succesfully.
+	 * @return true, if INIVTE was redirected successfully.
 	 * @return false, if there is no next destination.
 	 *
 	 * @pre The response must be a 3XX.
@@ -606,7 +606,7 @@ public:
 	
 	/**
 	 * Failover INVITE to the next destination from DNS lookup.
-	 * @return true, if INIVTE was succesfully sent.
+	 * @return true, if INIVTE was successfully sent.
 	 * @return false, if there is no next destination.
 	 */
 	bool failover_invite(void);
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 25b2814..0e91e58 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -1963,7 +1963,7 @@ void t_gui::cb_refer_result_success(int line) {
 	QString s;
 	
 	emit mw_display_header();
-	s = qApp->translate("GUI", "Line %1: call succesfully transferred.").arg(line + 1);
+	s = qApp->translate("GUI", "Line %1: call successfully transferred.").arg(line + 1);
 	emit mw_display(s);
 	
 	// The refer state has changed, so update the main window.
diff --git a/src/gui/lang/twinkle_cs.ts b/src/gui/lang/twinkle_cs.ts
index 7ebf2db..95300c0 100644
--- a/src/gui/lang/twinkle_cs.ts
+++ b/src/gui/lang/twinkle_cs.ts
@@ -652,7 +652,7 @@
         <translation>Linka %1: přepojení hovoru selhalo.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Linka %1: hovor byl přepojen.</translation>
     </message>
     <message>
@@ -4465,7 +4465,7 @@ Systém VAD je vždy aktivován, pokud je nastaveno kódováni s VBR.</translati
         <translation>Ko&amp;mplexita:</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation>Nesouvislé vysílání je rozšířením funkčnosi VAD/VBR, kdy je možné úplně přestat odesílat data v případě ticha.</translation>
     </message>
     <message>
@@ -5522,7 +5522,7 @@ Pokud je deaktivováno, použije Twinkle první kodek z vlastního seznamu, kter
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_de.ts b/src/gui/lang/twinkle_de.ts
index c47853c..504a544 100644
--- a/src/gui/lang/twinkle_de.ts
+++ b/src/gui/lang/twinkle_de.ts
@@ -652,7 +652,7 @@
         <translation>Leitung %1: Rufweitervermittlung erfolglos.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Leitung %1: Ruf wurde weitervermittelt.</translation>
     </message>
     <message>
@@ -4500,7 +4500,7 @@ VBR (siehe dort) macht VAD unnötig.</translation>
         <translation type="obsolete">Alt+X</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation>Discontinuous transmission (deutsch etwa: nicht kontinuierliche Datenübertragung) ist eine Erweiterung der VAD/VBR-Übertragung. Bei gleichbleibenden Audiosignal (insbesondere bei erkannten Sprechpausen) wird statt ständig der gleichen Nutzdaten einfach gar nichts übertragen. Senkt die durchschnittliche Datenrate etwas. Bei Störungen auf dem Übertragungsweg kann diese Option zu den von Mobiltelefonen der Anfangszeit bekannten absurden Tonstörungen (hängenbleiben des Tons, Artefakte) führen.</translation>
     </message>
     <message>
@@ -5571,7 +5571,7 @@ Alternativ kann Twinkle die AoR (Address of Record) nutzen. Nachteil hierbei: di
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_fr.ts b/src/gui/lang/twinkle_fr.ts
index f3a9965..f2bfd66 100644
--- a/src/gui/lang/twinkle_fr.ts
+++ b/src/gui/lang/twinkle_fr.ts
@@ -660,7 +660,7 @@
         <translation>Ligne %1: transfert d&apos;appel échoué.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Ligne %1: transfert d&apos;appel réussi.</translation>
     </message>
     <message>
@@ -4481,7 +4481,7 @@ Ce champ est obligatoire.</translation>
         <translation>Co&amp;mplexité:</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation>La transmission discontinue est un ajout à VAD/VBR, qui permet d&apos;arrêter totalement la transmission quand le bruit de fond est stationnaire.</translation>
     </message>
     <message>
@@ -5536,7 +5536,7 @@ Si vous désactivez cette option, c&apos;est le premier codec de la liste des co
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_nl.ts b/src/gui/lang/twinkle_nl.ts
index b325d96..bff0088 100644
--- a/src/gui/lang/twinkle_nl.ts
+++ b/src/gui/lang/twinkle_nl.ts
@@ -756,7 +756,7 @@
         <translation>Lijn %1: doorverbinden gesprek mislukt.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Lijn %1: doorverbinden gesprek geslaagd.</translation>
     </message>
     <message>
@@ -4552,7 +4552,7 @@ Dit is een verplicht veld.</translation>
         <translation type="obsolete">Alt+X</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation>Discontinuous transmission (DTX) is een extra optie boven op VAD. Met DTX wordt helemaal niets gestuurd tijdens stilte periodes.</translation>
     </message>
     <message>
@@ -5586,7 +5586,7 @@ Als u deze optie uitschakelt, dan neemt Twinkle de eerste codec uit de actieve c
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_ru.ts b/src/gui/lang/twinkle_ru.ts
index c4f1729..3162e4d 100644
--- a/src/gui/lang/twinkle_ru.ts
+++ b/src/gui/lang/twinkle_ru.ts
@@ -651,7 +651,7 @@
         <translation>Линия %1: ошибка передачи звонка.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Линия %1: Перевод звонка завершён.</translation>
     </message>
     <message>
@@ -4221,7 +4221,7 @@ If you disable this option, then the first codec from the active codecs that is
         <translation>&amp;Сложность:</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation type="unfinished"/>
     </message>
     <message>
@@ -4926,7 +4926,7 @@ The values of all SIP headers of the incoming SIP BYE request are passed in envi
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_sv.ts b/src/gui/lang/twinkle_sv.ts
index fcdee09..9286a79 100644
--- a/src/gui/lang/twinkle_sv.ts
+++ b/src/gui/lang/twinkle_sv.ts
@@ -672,7 +672,7 @@
         <translation>Linje %1: samtalskoppling misslyckades.</translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation>Linje %1: samtal kopplades.</translation>
     </message>
     <message>
@@ -4429,7 +4429,7 @@ If you disable this option, then the first codec from the active codecs that is
         <translation type="obsolete">Alt+X</translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -5094,7 +5094,7 @@ The values of all SIP headers of the incoming SIP BYE request are passed in envi
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/lang/twinkle_xx.ts b/src/gui/lang/twinkle_xx.ts
index 664b23b..08c4239 100644
--- a/src/gui/lang/twinkle_xx.ts
+++ b/src/gui/lang/twinkle_xx.ts
@@ -653,7 +653,7 @@
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Line %1: call succesfully transferred.</source>
+        <source>Line %1: call successfully transferred.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -4197,7 +4197,7 @@ If you disable this option, then the first codec from the active codecs that is
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</source>
+        <source>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
@@ -4902,7 +4902,7 @@ The values of all SIP headers of the incoming SIP BYE request are passed in envi
     </message>
     <message>
         <source>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/gui/main.cpp b/src/gui/main.cpp
index 205a54b..c066b47 100644
--- a/src/gui/main.cpp
+++ b/src/gui/main.cpp
@@ -269,7 +269,7 @@ void parse_main_args(int argc, char **argv, bool &cli_mode, bool &override_lock_
 			cout << endl;
 			cout << " --set-profile <profile>\n";
 			cout << "\t\tMake <profile> the active profile.\n";
-			cout << "\t\tWhen using this option in conjuction with --call and --cmd,\n";
+			cout << "\t\tWhen using this option in conjunction with --call and --cmd,\n";
 			cout << "\t\tthen the profile is activated before executing --call or \n";
 			cout << "\t\t--cmd.\n";
 			cout << endl;
@@ -278,7 +278,7 @@ void parse_main_args(int argc, char **argv, bool &cli_mode, bool &override_lock_
 			cout << "\t\tand take focus.\n";
 			cout << endl;
 			cout << " --hide";
-			cout << "\t\tInstruct a running instance of Twinkle to hide in the sytem tray.\n";
+			cout << "\t\tInstruct a running instance of Twinkle to hide in the system tray.\n";
 			cout << "\t\tIf no system tray is used, then Twinkle will minimize.\n";
 			cout << endl;
 			cout << " --help-cli [cli command]\n";
@@ -667,7 +667,7 @@ int main( int argc, char ** argv )
 		// Activate a profile in the running Twinkle process.
 		if (already_running && !g_cmd_args.cmd_set_profile.isEmpty()) {
             cmdsocket::cmd_cli(string("user ") + g_cmd_args.cmd_set_profile.toStdString(), true);
-			// Do not exit now as this option may be used in conjuction
+			// Do not exit now as this option may be used in conjunction
 			// with --call or --cmd
 			must_exit = true;
 		}
diff --git a/src/gui/mphoneform.cpp b/src/gui/mphoneform.cpp
index d28d3e1..e49306a 100644
--- a/src/gui/mphoneform.cpp
+++ b/src/gui/mphoneform.cpp
@@ -971,7 +971,7 @@ void MphoneForm::updateRegStatus()
 	toolTip.append("</b><br>");
 	toolTip.append("<table>");
 	
-	// Count number of succesful and failed registrations.
+	// Count number of successful and failed registrations.
 	// Determine tool tip showing registration details for all users.
 	list<t_user *>user_list = phone->ref_users();
 	for (list<t_user *>::iterator i = user_list.begin(); i != user_list.end(); i++) {
diff --git a/src/gui/userprofileform.ui b/src/gui/userprofileform.ui
index 5448aeb..8fe77ed 100644
--- a/src/gui/userprofileform.ui
+++ b/src/gui/userprofileform.ui
@@ -1446,7 +1446,7 @@ If you disable this option, then the first codec from the active codecs that is
                 <item row="1" column="0">
                  <widget class="QCheckBox" name="spxDtxCheckBox">
                   <property name="whatsThis">
-                   <string>Discontinuous transmission is an addition to VAD/VBR operation, that allows to stop transmitting completely when the background noise is stationary.</string>
+                   <string>Discontinuous transmission is an addition to VAD/VBR operation, that allows one to stop transmitting completely when the background noise is stationary.</string>
                   </property>
                   <property name="text">
                    <string>Discontinuous &amp;Transmission</string>
@@ -3748,7 +3748,7 @@ The values of all SIP headers of the incoming SIP BYE request are passed in envi
           <widget class="QLineEdit" name="incomingCallScriptLineEdit">
            <property name="whatsThis">
             <string>&lt;p&gt;
-You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the ouput of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
+You can customize the way Twinkle handles incoming calls. Twinkle can call a script when a call comes in. Based on the output of the script Twinkle accepts, rejects or redirects the call. When accepting the call, the ring tone can be customized by the script as well. The script can be any executable program.
 &lt;/p&gt;
 &lt;p&gt;
 &lt;b&gt;Note:&lt;/b&gt; Twinkle pauses while your script runs. It is recommended that your script does not take more than 200 ms. When you need more time, you can send the parameters followed by &lt;b&gt;end&lt;/b&gt; and keep on running. Twinkle will continue when it receives the &lt;b&gt;end&lt;/b&gt; parameter.
diff --git a/src/parser/hdr_warning.h b/src/parser/hdr_warning.h
index 1bfa200..6cbfb36 100644
--- a/src/parser/hdr_warning.h
+++ b/src/parser/hdr_warning.h
@@ -43,14 +43,14 @@
 #define WARNING_300	"Incompatible network protocol"
 #define WARNING_301	"Incompatible network address formats"
 #define WARNING_302	"Incompatible transport protocol"
-#define WARNING_303	"Incompatible bandwith units"
+#define WARNING_303	"Incompatible bandwidth units"
 #define WARNING_304	"Media type not available"
 #define WARNING_305	"Incompatible media format"
 #define WARNING_306	"Attribute not understood"
 #define WARNING_307	"Session description parameter not understood"
 #define WARNING_330	"Multicast not available"
 #define WARNING_331	"Unicast not available"
-#define WARNING_370	"Insufficient bandwith"
+#define WARNING_370	"Insufficient bandwidth"
 #define WARNING_399	"Miscellanous warning"
 
 using namespace std;
diff --git a/src/parser/request.h b/src/parser/request.h
index a2fe879..76a9b23 100644
--- a/src/parser/request.h
+++ b/src/parser/request.h
@@ -64,7 +64,7 @@ private:
 	 * @param passwd [in] Authentication password.
 	 * @param nc [in] Nonce count
 	 * @param cnonce [in] Client nonce
-	 * @param cr [out] Credentials on succesful return.
+	 * @param cr [out] Credentials on successful return.
 	 * @param fail_reason [out] Failure reason on failure return.
 	 * @return false, if authorization fails.
 	 * @return true, if authorization succeeded
@@ -82,7 +82,7 @@ private:
 	 * @param nc [in] Nonce count
 	 * @param cnonce [in] Client nonce
 	 * @param qop [in] Quality of protection
-	 * @param resp [out] Response on succesful return.
+	 * @param resp [out] Response on successful return.
 	 * @param fail_reason [out] Failure reason on failure return.
 	 * @return false, if authorization fails.
 	 * @return true, if authorization succeeded
@@ -102,7 +102,7 @@ private:
 	 * @param nc [in] Nonce count
 	 * @param cnonce [in] Client nonce
 	 * @param qop [in] Quality of protection
-	 * @param resp [out] Response on succesful return.
+	 * @param resp [out] Response on successful return.
 	 * @param fail_reason [out] Failure reason on failure return.
 	 * @return false, if authorization fails.
 	 * @return true, if authorization succeeded
@@ -174,7 +174,7 @@ public:
 	 * @param passwd [in] Authentication password.
 	 * @param nc [in] Nonce count
 	 * @param cnonce [in] Client nonce
-	 * @param cr [out] Credentials on succesful return.
+	 * @param cr [out] Credentials on successful return.
 	 * @param fail_reason [out] Failure reason on failure return.
 	 * @return false, if challenge is not supported.
 	 * @return true, if authorization succeeded
@@ -191,7 +191,7 @@ public:
 	 * @param passwd [in] Authentication password.
 	 * @param nc [in] Nonce count
 	 * @param cnonce [in] Client nonce
-	 * @param cr [out] Credentials on succesful return.
+	 * @param cr [out] Credentials on successful return.
 	 * @param fail_reason [out] Failure reason on failure return.
 	 * @return false, if challenge is not supported.
 	 * @return true, if authorization succeeded
diff --git a/src/phone.h b/src/phone.h
index ca88d6b..22ec010 100644
--- a/src/phone.h
+++ b/src/phone.h
@@ -551,7 +551,7 @@ public:
 	 * @return false, if there is already a phone user with the same name
 	 * and domain. In this case dup_user is a pointer to the user config
 	 * of that user.
-	 * @return true, if the phone user was added succesfully.
+	 * @return true, if the phone user was added successfully.
 	 * @note if there is already a user with exactly the same user config
 	 * then true is returned, but the user is not added again. The user
 	 * will be activated if it was inactive though.
@@ -685,7 +685,7 @@ public:
 	
 	/**
 	 * Set the signal handler to handler for LinuxThreads.
-	 * @return True if succesful, false otherwise.
+	 * @return True if successful, false otherwise.
 	 */
 	bool set_sighandler(void) const;
 	
diff --git a/src/phone_user.h b/src/phone_user.h
index 387baba..1704323 100644
--- a/src/phone_user.h
+++ b/src/phone_user.h
@@ -449,7 +449,7 @@ public:
 	 * @param r [inout] The request to be authorized.
 	 * @param resp [in] The response containing the challenge (401/407).
 	 * @param True if authorization succeeds, false otherwise.
-	 * @post On succesful return the request r contains the correct authorization
+	 * @post On successful return the request r contains the correct authorization
 	 * header (based on 401/407 response).
 	 */
 	bool authorize(t_request *r, t_response *resp);
diff --git a/src/presence/buddy.h b/src/presence/buddy.h
index b7852de..4eff380 100644
--- a/src/presence/buddy.h
+++ b/src/presence/buddy.h
@@ -188,7 +188,7 @@ public:
 	void stop_resubscribe_presence_timer(void);
 	
 	/**
-	 * By calling this method, succesful STUN completion is signalled to
+	 * By calling this method, successful STUN completion is signalled to
 	 * the buddy. It will subscribe to presence if it was waiting for STUN.
 	 */
 	void stun_completed(void);
@@ -302,7 +302,7 @@ public:
 	bool match_timer(t_subscribe_timer timer, t_object_id id_timer, t_buddy **buddy);
 	
 	/**
-	 * By calling this method, succesful STUN completion is signalled to the buddy
+	 * By calling this method, successful STUN completion is signalled to the buddy
 	 * list. The buddy list will now start presence subscriptions that were waiting
 	 * for STUN to complete.
 	 */
diff --git a/src/stun/stun.cxx b/src/stun/stun.cxx
index f5e9bc9..dd8b8d0 100644
--- a/src/stun/stun.cxx
+++ b/src/stun/stun.cxx
@@ -1896,7 +1896,7 @@ stunSendTest( StunSocket myFd, StunAddress4& dest,
          discard=true;
          break;
       default:
-         cerr << "Test " << testNum <<" is unkown\n";
+         cerr << "Test " << testNum <<" is unknown\n";
          assert(0);
    }
 	
diff --git a/src/sub_refer.cpp b/src/sub_refer.cpp
index f520575..4342f38 100644
--- a/src/sub_refer.cpp
+++ b/src/sub_refer.cpp
@@ -263,7 +263,7 @@ bool t_sub_refer::recv_subscribe(t_request *r, t_tuid tuid, t_tid tid) {
 	delete resp;
 
 	// RFC 3265 3.2.2
-	// After a succesful SUBSCRIBE the notifier must immediately
+	// After a successful SUBSCRIBE the notifier must immediately
 	// send a NOTIFY.
 	// If no last response has been kept then this is probably a
 	// first SUBSCRIBE. The dialog has to send the initial NOTIFY.
diff --git a/src/subscription.cpp b/src/subscription.cpp
index 8429618..85e42a4 100644
--- a/src/subscription.cpp
+++ b/src/subscription.cpp
@@ -555,7 +555,7 @@ bool t_subscription::recv_subscribe_response(t_response *r, t_tuid tuid, t_tid t
 			
 			log_file->write_header("t_subscription::recv_subscribe_response", 
 				LOG_NORMAL, LOG_DEBUG);
-			log_file->write_raw("Unsubcription succesful.\n");
+			log_file->write_raw("Unsubcription successful.\n");
 			log_event();
 			log_file->write_footer();
 		} else {
diff --git a/src/subscription.h b/src/subscription.h
index 67359a0..0e53fd3 100644
--- a/src/subscription.h
+++ b/src/subscription.h
@@ -39,7 +39,7 @@ enum t_subscription_state {
 	SS_NULL,		/**< Initial state */
 	SS_ESTABLISHED,		/**< Subscription is in place */
 	SS_UNSUBSCRIBING,	/**< A request to unsubscribe has been sent */
-	SS_UNSUBSCRIBED,	/**< An outoging unsubscribe was succesful. Waiting for the final NOTIFY. */
+	SS_UNSUBSCRIBED,	/**< An outoging unsubscribe was successful. Waiting for the final NOTIFY. */
 	SS_TERMINATED,		/**< Subscription ended */
 };
 
diff --git a/src/sys_settings.h b/src/sys_settings.h
index b6a6b93..7d4ff82 100644
--- a/src/sys_settings.h
+++ b/src/sys_settings.h
@@ -499,7 +499,7 @@ public:
 	 * @param error_msg [out] Error message if the operation fails.
 	 * @param already_running [out] If the operation fails, this flag indicates Twinkle
 	 *        is already running.
-	 * @return True if the file is locked succesfully.
+	 * @return True if the file is locked successfully.
 	 * @return False if the file could not be locked.
 	 */
 	bool create_lock_file(bool shared_lock, string &error_msg, bool &already_running);
diff --git a/src/userintf.cpp b/src/userintf.cpp
index edd0d0b..ba341b5 100644
--- a/src/userintf.cpp
+++ b/src/userintf.cpp
@@ -3063,7 +3063,7 @@ void t_userintf::cb_refer_result_success(int line) {
 	if (line >= NUM_USER_LINES) return;
 	
 	cout << endl;
-	cout << "Line " << line + 1 << ": call succesfully referred.\n";
+	cout << "Line " << line + 1 << ": call successfully referred.\n";
 	cout << endl;
 	cout.flush();
 }
diff --git a/src/utils/record_file.h b/src/utils/record_file.h
index 6108ea0..c3fb6de 100644
--- a/src/utils/record_file.h
+++ b/src/utils/record_file.h
@@ -49,7 +49,7 @@ public:
 	/**
 	 * Create a record to write to a file.
 	 * @param v [out] Vector of fields of record.
-	 * @return true, if record is succesfully created.
+	 * @return true, if record is successfully created.
 	 * @return false, otherwise.
 	 */
 	virtual bool create_file_record(vector<string> &v) const = 0;
@@ -57,7 +57,7 @@ public:
 	/**
 	 * Populate from a file record.
 	 * @param v [in] Vector containing the fields of the record.
-	 * @return true, if record is succesfully populated.
+	 * @return true, if record is successfully populated.
 	 * @return false, if file record could not be parsed.
 	 */
 	virtual bool populate_from_file_record(const vector<string> &v) = 0;	
@@ -132,7 +132,7 @@ public:
 	/** 
 	 * Load records from file. 
 	 * @param error_msg [out] Error message on failure return.
-	 * @return true, if file was read succesfully.
+	 * @return true, if file was read successfully.
 	 * @return false, if it fails. error_msg is an error to be given to
 	 * the user.
 	 */
@@ -141,7 +141,7 @@ public:
 	/** 
 	 * Save records to file.
 	 * @param error_msg [out] Error message on failure return.
-	 * @return true, if file was saved succesfully.
+	 * @return true, if file was saved successfully.
 	 * @return false, if it fails. error_msg is an error to be given to
 	 * the user.
 	 */