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How do I customize the number that a customer sees on their handset when my agents call them using Click to dial?

When an agent uses Click to dial to make a call, Vonage Contact Center presents a number to the person they are calling. The person receiving the call can use this number to identify who the incoming call is from and optionally use the number to call the agent back another time. You have several different ways to customize the number that VCC presents. For more information about callback numbers, see Callback numbers.

You can use this feature in various ways depending on how your Salesforce org is set up. To override callback numbers, you must create a custom Apex class that implements the NVMContactWorld.ISelectPresentedClid interface and defines the GetPresentedClid method. The GetPresentedClid method describes how ContactWorld can generate or locate the callback number. ContactWorld can then present this number as the callback number.

To create the custom class, you must be familiar with creating Apex classes in Salesforce. For information on creating Apex classes, see Salesforce help.

NVMContactWorld.ISelectPresentedClid interface definition

global interface ISelectPresentedClid{
	String GetPresentedClid(String clickToDialResult);
}

The clickToDialResult contains the phone number that the agent clicked to dial, and the object ID and type of the Salesforce object from which the agent clicked. clickToDialResult is in JSON string format, for example, {"number":"4155551212","objectId":"001x0000003DIGj","object":"Account"}. You do not need to provide clickToDialResult because Salesforce passes the value to the method for you when an agent initiates a Click to dial event.

GetPresentedClid returns the callback number as a String object.

ContactWorld validates the value returned by the GetPresentedClid method according to the following rules:

• if a null value is returned, the Click to dial call continues and ContactWorld uses the agent's default callback number, if set, or the account's default callback number
• if a non-null value is returned but the value is not configured as a callback number for the account, the agent receives an error message
• if a non-null value is returned and the value is configured as a callback number for the account, but that callback number is restricted from the agent, the agent receives an error message
• if a non-null value is returned and if the value is configured as a callback number for the account and that callback number is not restricted from the agent, the Click to dial call continues, and the value is used as the callback number for the call

global class SelectPresentedClidForContactByAccount implements NVMContactWorld.ISelectPresentedClid{
    
    // The clickToDialResult parameter contains the response string from the Salesforce ClickToDial event.
    // Salesforce passes the clickToDialResult parameter to us:
    // for example '{number: "07890123456", objectId: "0032000001FTGSo", object: "Contact"}'
    // Find more information at: https://www.salesforce.com/us/developer/docs/api_cti/Content/sforce_api_cti_onclicktodial.htm
 
    global String GetPresentedClid(String clickToDialResult){
         
        Map<String,Object> clickToDialResultMap = (Map<String,Object>)JSON.deserializeUntyped(clickToDialResult);
        String contactId = (String)clickToDialResultMap.get('objectId');
         
        Contact c = [SELECT Id, AccountId FROM Contact WHERE Id = :contactId];
        Account a = [SELECT Id, ClickToDialPresentedClid__c FROM Account WHERE Id = :c.AccountId];
         
        String presentedClid = a.ClickToDialPresentedClid__c;
         
        return presentedClid;       
    }
}

global class SelectPresentedClidByPolicy implements NVMContactWorld.ISelectPresentedClid{
     
    // The clickToDialResult parameter contains the response string from the Salesforce ClickToDial event.
    // Salesforce passes the clickToDialResult parameter to us:
    // for example '{number: "07890123456", objectId: "0032000001FTGSo", object: "Contact"}'
    // Find more information at: https://www.salesforce.com/us/developer/docs/api_cti/Content/sforce_api_cti_onclicktodial.htm
  
    global String GetPresentedClid(String clickToDialResult){
          
        Map<String,Object> clickToDialResultMap = (Map<String,Object>)JSON.deserializeUntyped(clickToDialResult);
        String customerNumber = (String)clickToDialResultMap.get('number');
        
        //Account default
        String presentedClid = '01234567890';
          
        if (customerNumber.startsWith('07') || customerNumber.startsWith('+447')) {
            //Mobile, or cell, numbers
            presentedClid = '07123456789';
        } else if (customerNumber.startsWith('0207') || customerNumber.startsWith('+44207')) {
            //Basingstoke numbers
            presentedClid = '02071234567';
        }
          
        return presentedClid;    
    }
}

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VCC provides three different methods of automating callback numbers with Click-to-dial:

• If enabled for your account, you can configure VCC to dynamically select a callback number based on the dialed number's prefix. This method does not require Apex code. For information about configuring VCC to dynamically select a callback number based on the dialed number's prefix, see Configuring prefix-based callback number selection.
• If enabled for your account, you can configure VCC to dynamically select a callback number based on the value in a field in the record that contains the clicked number. This method does not require Apex code. For information about configuring VCC to dynamically select a callback number based on a field's value, see Configuring field-based callback number selection.
• If enabled for your account, you can configure VCC to dynamically select a callback number using Apex. For information about using Apex to select the callback number, see Automating callback numbers for Click to dial using Apex.

The dynamically selected callback numbers take precedence for individual calls over both the callback number defined by your agent in ContactPad and your account's default callback number unless you have the feature "Allow agents to override auto-presented callback number" enabled.