---
title: "Post-Dial DTMF Strings"
slug: "post-dial-dtmf-strings"
description: "See how DTMF Strings allow you to join a call fast without needing to press a lot of keys. "
tags: ["join a call ", "join a meeting", "Post-dial DTMF strings"]
updated: 2025-12-24T21:38:27Z
published: 2025-12-24T21:38:27Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.dialpad.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Post-Dial DTMF Strings

Post-dial DTMF strings let you append PINs or other ID numbers to a particular contact number, using the comma (',') character to represent 2-second pauses in sequence.

They’re particularly valuable if you have standard conference bridges you repeatedly call into, wherein you need to enter a PIN or ID number to access the bridge.

Let’s dive into the details.

> [!NOTE]
> **Who can use this**
> 
> [Dialpad Connect](https://www.dialpad.com/products/business-phone-system/), [Dialpad Sell](https://www.dialpad.com/products/sales-dialer/), and [Dialpad Support](https://www.dialpad.com/products/cloud-contact-center/) customers can use post-dial DTMF strings.

## Add Post-Dial DTMF string for a contact

Post-Dial DTMF Strings can be added when editing or creating a new contact.

To add a Post-Dial DTMF String:

From the Dialpad conversation:

1. Open the contact details
  1. Select the contact’s name, or select the Skinny Bar
2. Select **Edit** (or **Create** if you’re creating a new contact)
3. In the phone number field, enter a comma (,) to represent a 2-second gap in sequence after the number itself

![Edit phone number to automatically dial PIN codes](https://cdn.us.document360.io/0f28ad44-2863-4372-a27e-c6728808d742/Images/Documentation/Post-dial-DTMF-string.png)

Multiple gaps can be added to ensure you don’t have to enter multiple PINs.

For example, if you frequently dial into a conference bridge at (555) 555-5555 and need to enter a PIN of '1234' six seconds after connecting, followed by '5678' eight seconds later, you would enter the contact number as (555) 555-5555,,,1234,,,,5678.

This way, you only need to select 'Call' to join the conference bridge, and you won’t have to manually enter both PINs each time.

## Frequently asked questions

### Can I use post-dial DTMF strings for transferring a call?

You can only use post-dial DTMF strings when [warm transferring](/v1/docs/transfer-a-call). Blind (direct) transfers are not supported.

### Can I use post-dial DTMF strings for call forwarding?

No, post-dial DTMF strings are not supported with [call forwarding.](/v1/docs/add-a-forwarding-prompt) <input type="hidden" value="none" data-display="inline">

## Related

- [Use your Obihai phone](/use-your-obihai-phone.md)
- [Start and Join a Meeting](/start-join-a-meeting.md)