help with jquery sendDigits

I have a textbox:
       <input type="text" id="tocall" value="">
and a 0-9, *, # telephone keypad on a webpage created by php.

The following code sends the digits when the keypad buttons are clicked with the mouse:

			$.each(['0','1','2','3','4','5','6','7','8','9','star','pound'], function(index, value) { 
		    	$('#button' + value).click(function(){ 
					if(connection) {
						if (value=='star')
							connection.sendDigits('*')
						else if (value=='pound')
							connection.sendDigits('#')
						else
							connection.sendDigits(value)
						return false;
					} 
					});
			});

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I would like to add the function where I can paste numbers into the "tocall" textbox, press enter and have the digits sent consecutively by sendDigits when the call is connected:
                  Twilio.Device.connect(function (conn) {
                        $('#status').text("Successfully established call");
                        toggleCallStatus();

How can I do that?

Here is the rest of the jquery code:

		$(document).ready(function(){

			Twilio.Device.setup("<?php echo $token->generateToken(86400);?>");
			var connection=null;
			
			$("#call").click(function() {  
				params = { "tocall" : $('#tocall').val()};
				connection = Twilio.Device.connect(params);
			});
			$("#hangup").click(function() {  
				Twilio.Device.disconnectAll();
			});

			Twilio.Device.ready(function (device) {
				$('#status').text('Ready to start call');
			});

			Twilio.Device.incoming(function (conn) {
				if (confirm('Accept incoming call from ' + conn.parameters.From + '?')){
					connection=conn;
				    conn.accept();
				}
			});

			Twilio.Device.offline(function (device) {
				$('#status').text('Offline');
			});

			Twilio.Device.error(function (error) {
				$('#status').text(error);
			});

			Twilio.Device.connect(function (conn) {
				$('#status').text("Successfully established call");
				toggleCallStatus();
			});

			Twilio.Device.disconnect(function (conn) {
				$('#status').text("Call ended");
				toggleCallStatus();
			});
			
			function toggleCallStatus(){
				$('#call').toggle();
				$('#hangup').toggle();
				$('#dialpad').toggle();
			}

			$.each(['0','1','2','3','4','5','6','7','8','9','star','pound'], function(index, value) { 
		    	$('#button' + value).click(function(){ 
					if(connection) {
						if (value=='star')
							connection.sendDigits('*')
						else if (value=='pound')
							connection.sendDigits('#')
						else
							connection.sendDigits(value)
						return false;
					} 
					});
			});

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