diff --git a/asterisk/manager.py b/asterisk/manager.py
index 00b5206..3231a3d 100644
--- a/asterisk/manager.py
+++ b/asterisk/manager.py
@@ -319,6 +319,7 @@ class Manager(object):
                         status = True
                         wait_for_marker = True
                     lines.append(line)
+
                     # line not ending in \r\n or without ':' isn't a
                     # valid header and starts multiline response
                     if not line.endswith('\r\n') or ':' not in line:
@@ -612,6 +613,7 @@ class Manager(object):
 
     def playdtmf(self, channel, digit):
         """Plays a dtmf digit on the specified channel"""
+        
         cdict = {'Action': 'PlayDTMF'}
         cdict['Channel'] = channel
         cdict['Digit'] = digit
@@ -626,14 +628,12 @@ class Manager(object):
         cdict['Channel'] = channel
         cdict['Timeout'] = timeout
         response = self.send_action(cdict)
-
         return response
 
     def mailbox_count(self, mailbox):
         cdict = {'Action': 'MailboxCount'}
         cdict['Mailbox'] = mailbox
         response = self.send_action(cdict)
-
         return response
 
     def sippeers(self):
diff --git a/examples/show_channels.py b/examples/show_channels.py
new file mode 100644
index 0000000..c769d6d
--- /dev/null
+++ b/examples/show_channels.py
@@ -0,0 +1,36 @@
+"""
+Example to get list of active channels
+"""
+import asterisk.manager
+import sys
+
+manager = asterisk.manager.Manager()
+
+try:
+    # connect to the manager
+    try:
+        manager.connect('localhost')
+        manager.login('user', 'secret')
+
+        # get a status report
+        response = manager.status()
+        print response
+        
+        response = manager.command('core show channels concise')
+        print response.data
+
+        manager.logoff()
+    except asterisk.manager.ManagerSocketException, (errno, reason):
+        print "Error connecting to the manager: %s" % reason
+        sys.exit(1)
+    except asterisk.manager.ManagerAuthException, reason:
+        print "Error logging in to the manager: %s" % reason
+        sys.exit(1)
+    except asterisk.manager.ManagerException, reason:
+        print "Error: %s" % reason
+        sys.exit(1)
+
+finally:
+    # remember to clean up
+    manager.close()
+